g

g — noun

1. the seventh letter used when writing English, coming after f and before h.

1.nounA1
Definition

the seventh letter used when writing English, coming after f and before h.

Example

Sana wrote a small g at the top of her notebook page.

lowercase form of the letter

The word 'dog' ends with the letter g.

Common collocations
  • capital G
  • lowercase g
  • letter g

Usage Note

Refers to the letter as a written or spoken unit. Distinguish from sense 2, which is the musical note.

2. one of the seven main notes in Western music, sitting between F and A on the sca

2.nounB2
Definition

one of the seven main notes in Western music, sitting between F and A on the scale.

Example

Sumin played a long G on her violin to tune the other strings.

playing the note on an instrument

The song begins on a low G and rises slowly to a high C.

low G / high C for note pitch range

Common collocations
  • the key of G
  • chord of G
  • play a G
  • high G
  • low G

Usage Note

Almost always capitalised. Used both for the single note and for the chord built on it (the key of G).

3. a slang term used in spoken English for one thousand US dollars.

3.nounC1
Definition

a slang term used in spoken English for one thousand US dollars.

Example

Christopher said the used car would cost him about five Gs.

informal price expression with plural Gs

Winning the rap battle came with a prize of ten Gs in cash.

Common collocations
  • five Gs
  • a few Gs
  • ten Gs
Synonyms
  • grand

    more widely used slang for 1,000 dollars; same register

  • K

    neutral abbreviation for thousand, used for any currency, not slangy

Usage Note

Mostly heard in American films, music, and casual conversation about money. Often plural ('Gs') when counting amounts.

Common Mistakes

I owe him five g.
I owe him five Gs.
the plural form 'Gs' is standard when counting amounts.

4. a unit for measuring the force on a body when it speeds up or slows down quickly

4.nounC1
Definition

a unit for measuring the force on a body when it speeds up or slows down quickly, equal to the pull of Earth's gravity at sea level.

Example

Fighter pilots may experience up to nine g during a sharp turn.

up to nine g for high-acceleration contexts

Astronauts train in a centrifuge to handle three or four g without blacking out.

Common collocations
  • pull X g
  • experience X g
  • withstand X g
  • one g
Synonyms
  • g-force

    the full term; 'g' is the symbol used after a number

Usage Note

Always lowercase. Distinguish from sense 5, where 'g' is the symbol for the gram (mass), not the unit of acceleration (force).

Common Mistakes

The pilot felt five Gs of weight.
The pilot felt five g of force.
the unit measures force from acceleration, not weight.

g — abbreviation

Common collocations

Nouns

  • capital G
  • lowercase g
  • G rating
  • G-force

Etymology

LatinFrenchEnglish

The letter g entered the Roman alphabet around the 3rd century BC, formed by adding a small bar to the letter C to mark a distinct hard sound. English inherited it from Latin through the Norman French alphabet. The musical note name comes from the medieval Guidonian sol-fa system. The slang use of 'G' for one thousand dollars dates from American underworld speech in the early 20th century, where 'grand' was shortened to its first letter.

First known use

12th century

12th century, in the meaning defined at sense 1a