declined

IPA/dɪˈklaɪn/
KK[dɪklˈaɪnd]IPA/dɪˈklaɪn/

declined — verb

  • declinedpresent simple I / you / we / they
  • declineds3rd person singular
  • declineding-ing form
  • declinededpast simple

1. to go down in amount, level, or quality over a period of time — for example, whe

1.verbintransitiveB1
Definition

to go down in amount, level, or quality over a period of time — for example, when a company's profits get smaller, a person's health gets worse, or the condition of a building becomes poorer.

Example

The company's profits declined steadily over three years.

decline + adverb (steadily)

Priya's health declined rapidly after she caught the infection.

Common collocations
  • decline sharply
  • decline steadily
  • decline rapidly
  • decline by half
  • decline in value
Synonyms
  • decrease

    focuses purely on numbers going down; less about quality

  • deteriorate

    specifically about becoming worse in condition, not just smaller

  • drop

    more sudden or dramatic; less gradual

Antonyms
  • increase

    to go up in amount or level

  • improve

    to become better in quality or condition

Grammar Patterns

decline + adverb (sharply/steadily/dramatically)

decline + by + number/percentage

decline + from + noun + to + noun

Usage Note

This sense is intransitive — it does not take a direct object. You cannot say 'The company declined its profits.' Instead, say 'The profits declined.' The subject is usually a measurable thing: population, sales, quality, health, or condition.

Common Mistakes

The company declined its profits last year.
The company's profits declined last year.
'decline' in this sense is intransitive and cannot take a direct object.

2. to say no to an offer, invitation, or request in a polite or formal way — for ex

2.verbtransitiveB1
Definition

to say no to an offer, invitation, or request in a polite or formal way — for example, declining a dinner invitation because you are busy, or declining to answer a question during an interview.

Example

Theo politely declined the offer to lead the new project.

decline + noun phrase (offer)

When the journalist asked about her salary, Ines declined to answer.

decline + to-infinitive

Common collocations
  • decline an offer
  • decline an invitation
  • decline a request
  • decline to answer
  • decline to comment
Synonyms
  • refuse

    stronger and less polite; can sound blunt or angry

  • turn down

    less formal, common in everyday conversation

  • reject

    firmer, implies the offer/proposal is not acceptable

Antonyms
  • accept

    to say yes to an offer or invitation

  • agree

    to say yes to a request or proposal

Grammar Patterns

decline + noun phrase (offer, invitation, request)

decline + to-infinitive

Usage Note

More formal than 'refuse' or 'say no'. Common in professional and diplomatic contexts. Can be followed directly by a noun (decline an offer) or by a to-infinitive (decline to participate). Unlike 'refuse', it does NOT sound harsh or angry.

Common Mistakes

She declined going to the party.
She declined the invitation to the party.' or 'She declined to go to the party.
'decline' cannot be followed by a gerund (-ing form).

3. to set out the various inflected versions of a word belonging to a noun class —

3.verbtransitive / intransitiveC1
Definition

to set out the various inflected versions of a word belonging to a noun class — such as a person's name, a thing word, or a describing word — showing changes for grammatical job (subject versus object) in languages like Latin, German, or Russian.

Example

In Latin class, students learn to decline nouns like 'puella' through all five cases.

decline + noun (direct object)

The pronoun 'who' declines into 'whom' when it functions as an object.

pronoun + declines (intransitive)

Common collocations
  • decline a noun
  • decline a pronoun
  • decline an adjective
  • decline by case
  • decline in the plural
Synonyms
  • inflect

    broader term that covers all types of grammatical changes including verb conjugation

  • case-mark

    more technical and specific to case systems

Grammar Patterns

decline + noun (case/pronoun/adjective)

noun + declines (intransitive)

Usage Note

This is a technical grammar term. It applies mainly to languages with case systems (Latin, German, Russian, Japanese). In English, nouns only decline for plural (-s) and possessive ('s). Distinguish from 'conjugate', which applies to verbs.

Common Mistakes

In French, you decline verbs.
In French, you conjugate verbs.
'decline' applies to nouns, pronouns, and adjectives; 'conjugate' applies to verbs.

declined — noun

Word family

Synonym discussion

Sense: verb/1

All four words describe something going down, but they differ in emphasis and scope. 'Decrease' is the most neutral and purely quantitative — it simply means fewer or less, with no judgment on quality (e.g., 'The temperature decreased by two degrees'). 'Decline' adds the idea of a gradual, often unwelcome process over time, and can apply to both quantity and quality ('Her health declined'). 'Deteriorate' focuses on things getting worse in condition, not smaller ('The building's structure deteriorated'). 'Drop' and 'fall' are more sudden or dramatic — they suggest a quick change rather than a slow slide ('Stock prices dropped sharply'). For a gradual, negative movement over time — whether of numbers, health, or standards — 'decline' is the most natural choice.

decrease ↗deteriorate ↗drop ↗fall ↗

Common collocations

Nouns

Adverbs

Phrases

  • on the decline
  • in decline
  • decline and fall

Prepositions

Etymology

LatinOld FrenchEnglish

The word 'decline' comes from the Latin verb 'declinare', meaning 'to bend away, turn aside, or slope down'. It is made of 'de-' (down from, away) and 'clinare' (to bend, lean). The sense of refusing politely developed through the idea of 'turning away from' an offer. The grammar sense also traces back to Latin, where 'declinare' was used for inflecting words — literally 'bending' them into different forms. English borrowed the word through Old French 'decliner' around the 1300s.