realize

IPA/ˈriːəlaɪz/
KK[rˈiəlˌaɪz]IPA/ˈriːəlaɪz/

realize — verb

  • realizepresent simple I / you / we / they
  • realizeshe / she / it
  • realizedpast simple
  • realizing-ing form

1. to suddenly understand a fact or truth that you did not know or accept before, e

1.verbtransitiveB1
Definition

to suddenly understand a fact or truth that you did not know or accept before, especially when something brings it to your attention

Example

Camila suddenly realized she had left her keys inside the locked car.

realize + that-clause for becoming aware of a fact

As the math teacher drew the graph, Darius realized how much more practice he needed before the final exam.

realize + how-clause

Common collocations
  • suddenly realize
  • gradually realize
  • come to realize
  • realize + (that)
  • realize + the importance/truth/extent
Synonyms
  • notice

    less mental processing — you notice with your senses; realize involves deeper understanding

  • recognize

    implies identifying something already known, whereas realize can be discovering something new

  • grasp

    more formal; suggests fully understanding a complex point

  • comprehend

    more formal and technical; less sudden than realize

Antonyms
  • overlook

    fail to notice or realize

  • ignore

    deliberately not pay attention, unlike realizing involuntarily

Grammar Patterns

realize + (that) clause

realize + wh-clause (what/why/how)

realize + noun phrase (fact/truth/mistake)

Common Mistakes

I realized the party is fun before I went.
I realized the party was fun only after I arrived.
'realize' describes the moment of understanding, not a prior opinion.

2. to successfully turn a hope, ambition, or plan into something real through susta

2.verbtransitiveB2
Definition

to successfully turn a hope, ambition, or plan into something real through sustained effort

Example

After years of saving, Noa finally realized her dream of opening a small bookstore.

collocation: realize a dream

The young swimmer realized his potential when he broke the national record.

collocation: realize potential

Common collocations
  • realize a dream
  • realize potential
  • realize an ambition
  • realize a goal
  • realize a vision
Synonyms
  • achieve

    more common and general; realize adds the nuance of 'making real' something previously only imagined

  • fulfill

    emphasizes meeting a desire or expectation; similar to realize but slightly more formal

  • attain

    more formal; often used for goals reached after difficulty

Antonyms
  • abandon

    give up on a goal before achieving it

  • fail

    try but not succeed in achieving

Grammar Patterns

realize + noun phrase (dream/ambition/potential/goal/plan)

Usage Note

Common objects include dream, ambition, potential, goal, plan, vision. The subject is usually a person or group that worked toward the outcome.

Common Mistakes

She realized her homework before dinner.
She realized her goal of finishing the project.
Use 'finish' or 'complete' for everyday tasks; 'realize' is for meaningful, long-term aims.

3. to happen in exactly the way someone was afraid it would, so that their worry tu

3.verbtransitiveB2
Definition

to happen in exactly the way someone was afraid it would, so that their worry turns out to be correct

Example

Adisa's worst fears were realized when sales dropped by half in one month.

passive: fears were realized

Esme's fears about the trip were realized when a storm forced the plane back.

Common collocations
  • fears are realized
  • worries are realized
  • suspicions are realized
  • nightmare realized
Synonyms
  • come true

    broader — can be positive (dreams) or negative; 'realized' is almost exclusively for negative fears

  • materialize

    more formal; can be neutral or negative

Antonyms

Grammar Patterns

fears/worries/suspicions + be realized

fears + realize themselves

Usage Note

Almost always used in the passive voice with fear, worry, suspicion, dread, or nightmare as the subject.

Common Mistakes

His fear realized that he would fail.
His fear of failure was realized.
The fear is the subject, and the verb is usually passive ('was realized').

4. to be sold at a public auction for a particular price or amount of money

4.verbtransitiveB2
Definition

to be sold at a public auction for a particular price or amount of money

Example

The painting realized over one million dollars at a charity auction in London.

realize + amount of money at auction

The old seaside mansion realized a price far higher than the owners expected.

Common collocations
  • realize a price
  • realize a sum
  • realize value
  • realize a profit
Synonyms
  • fetch

    less formal; used for prices at auction or sale

  • sell for

    general verb phrase; realize is more formal and specific to auctions

Grammar Patterns

item + realize + amount of money

item + realize + a price/value

Usage Note

No passive form. The subject is always the item being sold, not the seller. Common in auction and real-estate contexts.

Common Mistakes

The seller realized one million dollars for the painting.
The painting realized one million dollars.
The item, not the seller, is the subject of this sense.

5. to sell possessions such as property, shares, or investments in order to obtain

5.verbtransitiveB2
Definition

to sell possessions such as property, shares, or investments in order to obtain cash

Example

The family realized their assets to pay for their grandfather's medical treatment.

collocation: realize assets

The company realized the value of its real estate by selling the office building.

Common collocations
  • realize assets
  • realize property
  • realize investments
  • realize profits
  • realize capital
  • realize value
Synonyms
  • liquidate

    more technical; implies converting all assets to cash, often under pressure

  • sell off

    less formal; selling in parts or at a discount

Antonyms
  • retain

    keep rather than sell

  • invest

    put money into assets rather than take money out

Grammar Patterns

realize + assets/property/investments

realize + value/profits/capital

Usage Note

Often used in financial and legal contexts. The subject is the person or organization doing the selling.

Common Mistakes

I realized my old laptop for fifty dollars.
I realized the value of my old investments when I sold the shares.
This sense is for significant assets, not casual personal items.

6. to expand a shorthand musical notation called figured bass into a complete, play

6.verbtransitiveC1
Definition

to expand a shorthand musical notation called figured bass into a complete, playable harmony by adding the chords indicated by numbers

Example

The harpsichordist realized the figured bass during the Baroque music concert.

specialist term: realize a figured bass

Music students in the Baroque performance class learn to realize a figured bass line by adding chords above each note.

Common collocations
  • realize a figured bass
  • realize a bass line
  • realize a passage
Synonyms
  • harmonize

    broader — adding any harmony; realize is specific to figured bass notation

Grammar Patterns

realize + a figured bass

realize + a bass line/part

Usage Note

A specialist term in Baroque music performance. Not used in general English. The subject is always a musician, and the object is a figured bass or bass line.

7. to perform or produce a piece of music from written notes or instructions, givin

7.verbtransitiveB2
Definition

to perform or produce a piece of music from written notes or instructions, giving it a specific sound or style

Example

The orchestra realized the composer's score beautifully in the concert hall.

collocation: realize a score

Sora realized the piano piece in a slower, more emotional style than usual.

Common collocations
  • realize a score
  • realize a symphony
  • realize a piece
  • realize music
Synonyms
  • perform

    more common; realize emphasizes bringing written notes to life faithfully

  • interpret

    focuses on the performer's artistic choices; realize focuses on faithful execution from notation

Grammar Patterns

realize + a score/symphony/song

realize + music + in/with + style/manner

Usage Note

Common in classical music criticism and historical performance contexts. The subject is a performer or ensemble, and the object is a written musical work.

8. to produce a speech sound with a specific quality or position, based on the phon

8.verbtransitiveC1
Definition

to produce a speech sound with a specific quality or position, based on the phonetic rules of a language or dialect

Example

In some Scottish English dialects, speakers realize the 'r' sound at the back of the mouth.

specialist: realize a speech sound

The visiting linguist showed the phonetics class how to realize a glottal stop between two vowel sounds.

Common collocations
  • realize a sound
  • realize a phoneme
  • realized as
  • realized differently
Synonyms
  • pronounce

    the everyday term; realize is the technical phonetic term

  • articulate

    also technical; focuses on the physical production of speech

Grammar Patterns

realize + a speech sound

sound + be realized + as + phonetic variant

Usage Note

Primarily used in linguistics and phonetics. Not used in everyday speech about pronunciation — learners should use 'pronounce' instead.

Common Mistakes

How do you realize this word?
How do you pronounce this word?
For everyday questions about pronunciation, use 'pronounce'; 'realize' is a technical term for linguists.

Word family

Synonym discussion

Sense: verb/1

All five words involve taking in information, but they differ in how suddenly or deeply the awareness happens. 'Realize' often comes as a mental shift — you move from not knowing to knowing, sometimes with a jolt. 'Notice' is sensory: you see, hear, or feel something. 'Recognize' means you identify something you have encountered before. 'Understand' is broader and implies a full mental grasp, not necessarily sudden. 'Grasp' adds the idea of managing to comprehend something difficult. For example: Amihan noticed that the door was open (saw it), recognized the old woman at the counter (knew her from before), realized she had lost her wallet (sudden mental discovery), understood why the woman looked worried (full picture), and finally grasped the serious situation after it was explained (struggling but then getting it).

Common collocations

Phrases

  • come to realize
  • begin to realize
  • fail to realize
  • make someone realize

Etymology

LatinFrenchEnglish

Realize entered English in the early 1600s from French 'réaliser', which meant 'to make real'. The French word came from Latin 'realis' (meaning 'real', 'actual'), from 'res' (meaning 'thing' or 'matter'). For most of its history, 'realize' meant 'to make something real or concrete' — you realized a plan by carrying it out. The modern sense of 'become aware' (sense 1) only appeared in the mid-1800s, developing from the idea of 'making a fact real in your mind'.