\ ˈsīz How to pronounce size (audio) \

Definition of size

 (Entry 1 of 5)

1a : physical magnitude, extent, or bulk : relative or proportionate dimensions
b : relative aggregate amount or number
c : considerable proportions : bigness
2 : one of a series of graduated measures especially of manufactured articles (as of clothing) conventionally identified by numbers or letters a size seven hat
3 : character, quality, or status of a person or thing especially with reference to importance, relative merit, or correspondence to needs Try this idea on for size.
4 : actual state of affairs That's about the size of it.
5 dialectal British : assize sense 2a usually used in plural
6 obsolete : a fixed portion of food or drink
sized; sizing

Definition of size (Entry 2 of 5)

transitive verb

1 : to make a particular size : bring to proper or suitable size
2 : to arrange, grade, or classify according to size or bulk

intransitive verb

: to equal in size or other particular characteristic : compare usually used with up and often with to or with
\ ˈsīz How to pronounce size (audio) , ˌsīz \

Definition of size (Entry 3 of 5)

: sized usually used in combination
\ ˈsīz How to pronounce size (audio) \

Definition of size (Entry 4 of 5)

: any of various glutinous materials (such as preparations of glue, flour, varnish, or resins) used for filling the pores in surfaces (as of paper, textiles, leather, or plaster) or for applying color or metal leaf (as to book edges or covers)
sized; sizing

Definition of size (Entry 5 of 5)

transitive verb

: to cover, stiffen, or glaze with or as if with size

First Known Use of size

Noun (1)

13th century, in the meaning defined at sense 5

Verb (1)

1609, in the meaning defined at transitive sense 1


1848, in the meaning defined above

Noun (2)

15th century, in the meaning defined above

Verb (2)

1667, in the meaning defined above

History and Etymology for size

Noun (1)

Middle English sise assize, from Anglo-French, short for assise — more at assize

Noun (2)

Middle English sise

Keep scrolling for more

Learn More about size

Time Traveler for size

Time Traveler

The first known use of size was in the 13th century

See more words from the same century

Statistics for size

Cite this Entry

“Size.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/size. Accessed 23 Jan. 2021.

Keep scrolling for more

More Definitions for size

How to pronounce size (audio)

English Language Learners Definition of size

: having a specified size


\ ˈsīz How to pronounce size (audio) \

Kids Definition of size

1 : amount of space occupied by someone or something : how large or small someone or something is … the sword … was just the right size and weight for Peter to use.— C. S. Lewis, The Lion, the Witch and the Wardrobe
2 : the number or amount of people or things The population grows in size.
3 : one of a series of measures especially of manufactured articles (as clothing)

Keep scrolling for more

Comments on size

What made you want to look up size? Please tell us where you read or heard it (including the quote, if possible).


Test Your Vocabulary

Slippery Words Quiz—Changing with the Times

  • ducreux self portrait yawning
  • What is an earlier meaning of nice?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

 AlphaBear 2

Spell words. Make bears.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!