understand

verb

un·​der·​stand ˌən-dər-ˈstand 

understood ˌən-dər-ˈstu̇d  ; understanding

transitive verb

1

a

: to grasp the meaning of

understand Russian

b

: to grasp the reasonableness of

his behavior is hard to understand

c

: to have thorough or technical acquaintance with or expertness in the practice of

understand finance

d

: to be thoroughly familiar with the character and propensities of

understands children

2

: to accept as a fact or truth or regard as plausible without utter certainty

we understand that he is returning from abroad

3

: to interpret in one of a number of possible ways

4

: to supply in thought as though expressed

"to be married" is commonly understood after the word engaged

intransitive verb

1

: to have understanding : have the power of comprehension

2

: to achieve a grasp of the nature, significance, or explanation of something

3

: to believe or infer something to be the case

4

: to show a sympathetic or tolerant attitude toward something

understandability

ˌən-dər-ˌstan-də-ˈbi-lə-tē 

noun

understandable

ˌən-dər-ˈstan-də-bəl 

adjective

Synonyms

• know
• comprehend

Choose the Right Synonym for understand

understand, comprehend, appreciate mean to have a clear or complete idea of.

understand and comprehend are very often interchangeable.

understand may, however, stress the fact of having attained a firm mental grasp of something.

orders that were fully understood and promptly obeyed

comprehend may stress the process of coming to grips with something intellectually.

I have trouble comprehending your reasons for doing this

appreciate implies a just evaluation or judgment of a thing's value or nature.

failed to appreciate the risks involved

Examples of understand in a Sentence

I can't understand a word you're saying.

I don't understand these directions.

I want you to stay away from her. Do you understand?

I don't understand how this is supposed to work.

He doesn't really understand the situation.

You should read the book in order to understand more about the subject.

I can't understand why she would do such a thing.

She's beginning to understand what's going on.

You have to understand that I had no other choice.

At first we didn't get along, but I think we understand each other now.

Recent Examples on the Web

But then appeared on the road a living creature whose intent my driver could not understand: a cow. —Shekar Natarajan, Forbes.com, 15 July 2025

The human role is now to understand what to ask the models for the best results, and to iron out the inevitable problems that crop up along the way. —Billy Perrigo, Time, 15 July 2025

Unlike other coastal destinations that easily succumb to high-rise condos, touristy restaurants, and run-of-the-mill souvenir shops, Lauderdale-By-The-Sea understands that growth doesn’t always equal progress. —Tara Massouleh McCay, Southern Living, 15 July 2025

Captain Pike, who was a straightforward and fairly dull square-jawed hero type in the original Star Trek pilot, has been reinvented by the writers and Anson Mount as a superhumanly empathetic leader who solves problems by trying to understand both his enemies and his allies. —Alan Sepinwall, Rolling Stone, 15 July 2025

Word History

Etymology

Middle English, from Old English understandan, from under + standan to stand

First Known Use

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

Phrases Containing understand

• fail to see/understand
• give (someone) to understand

Rhymes for understand

• ampersand
• beforehand
• behindhand
• bottomland
• contraband
• countermand
• dixieland
• fairyland
• fatherland
• firebrand
• hinterland
• motherland

Kids Definition

understand

verb

un·​der·​stand ˌən-dər-ˈstand 

understood -ˈstu̇d  ; understanding

1

a

: to get the meaning of : comprehend

b

: to have thorough acquaintance with

understand the arts

2

: to have reason to believe : gather, infer

I understand that they will arrive today

3

: to take as meaning something not openly made known : interpret, explain

understand the letter to be a refusal

4

: to have a sympathetic attitude

my cousin doesn't understand about these things

5

: to supply in thought as if expressed

"to be married" is commonly understood after the word "engaged"

understandable

-ˈstan-də-bəl 

adjective

understandably

-blē

adverb