understood

understood — adjective

1. referring to a fact, idea, or piece of information that has been fully grasped i

1.adjectiveB1
Definition

referring to a fact, idea, or piece of information that has been fully grasped in all its important details after study or explanation; the state where comprehension of something is complete.

Example

After the lecture, Christopher felt that the main concept was understood by everyone in the room.

passive: was understood by [group]

Hari checked his notes to make sure the instructions were understood before starting the project.

Common collocations
  • clearly understood
  • fully understood
  • well understood
  • make oneself understood
Synonyms
  • grasped

    More informal; often used for quick or intuitive comprehension

  • comprehended

    More formal; implies deep intellectual understanding

  • appreciated

    Emphasizes recognition of value or significance, not just factual grasp

Antonyms
  • misunderstood

    The direct opposite — grasped incorrectly

  • unclear

    Describes the information itself rather than the mental state

Grammar Patterns

be understood

become understood

make oneself understood

Usage Note

Commonly appears in the passive construction 'be understood' to describe the moment comprehension is achieved. Distinguish from sense 2, which describes a mutual arrangement between parties rather than intellectual grasp.

Common Mistakes

I understood the book' (when meaning you finished it).
The main idea of the book was understood after the second reading.
As an adjective, 'understood' refers to a state of comprehension, not the act of finishing something.

2. referring to an arrangement, rule, or set of terms that has been formally or inf

2.adjectiveB1
Definition

referring to an arrangement, rule, or set of terms that has been formally or informally accepted by all the people involved, without needing to be written down for confirmation.

Example

It was understood between the two teams that the meeting would start at nine o'clock.

it was understood that... — formal mutual agreement

The payment terms were understood and accepted by both sides before the deal was signed.

Common collocations
  • mutually understood
  • understood between
  • understood arrangement
  • understood agreement
Synonyms
  • agreed

    More general; can be used for both formal and informal arrangements

  • settled

    Emphasizes finality — no further negotiation needed

  • accepted

    Focuses on the voluntary approval of terms

Antonyms
  • disputed

    Not yet agreed upon; still under disagreement

Grammar Patterns

it was understood that...

[noun] was understood between [plural noun]

Usage Note

Frequently appears with 'between' or 'among' to indicate the parties involved in the mutual arrangement. This sense emphasizes shared acceptance rather than intellectual comprehension — distinguish from sense 1.

Common Mistakes

The price was understood by me' (when meaning you read it).
The price was understood between the two companies.
Sense 2 requires mutual acceptance between parties, not individual comprehension.

3. referring to a meaning, rule, or expectation that is implied by context or socia

3.adjectiveB2
Definition

referring to a meaning, rule, or expectation that is implied by context or social convention rather than directly stated in words; something that everyone involved knows without being told.

Example

It is understood that employees should not use their phones during working hours.

it is understood that... — formal implied rule construction

In a library, the need for silence is understood without anyone saying a word.

Common collocations
  • understood signal
  • understood rule
  • it is understood that
  • understood without
Synonyms
  • implied

    More direct synonym; suggests meaning is carried by context

  • inferred

    Focuses on the listener's act of deduction

  • tacit

    Formal term from law and philosophy; emphasizes silent acceptance

  • unspoken

    Emphasizes that nothing is said aloud

Antonyms
  • explicit

    Clearly and directly stated in words

  • stated

    Formally expressed rather than implied

Grammar Patterns

it is understood that...

[noun] is understood without [verb]-ing

Usage Note

Commonly introduces an implied social convention or expectation in the pattern 'it is understood that...' This sense does not involve a specific agreement between named parties (distinguish from sense 2) nor intellectual grasp after study (distinguish from sense 1).

Common Mistakes

It is understood that the store opens at 9 AM' (when the hours are posted on the door).
It is understood that visitors remove their shoes before entering a temple.
The rule must be implicit or unwritten, not explicitly stated elsewhere.

Word family

Synonym discussion

Sense: adjective/1

All four words describe coming to know or understand something, but they emphasize different aspects. 'Understood' (sense 1) is the broadest — it simply states that full comprehension has been reached after study or explanation. 'Grasped' is more informal and often suggests a quick, intuitive seizure of meaning ('He grasped the problem immediately'). 'Comprehended' is more academic and implies deep, thorough intellectual processing ('The students comprehended the theory after weeks of study'). 'Appreciated' adds an emotional or evaluative layer — you understand the value, significance, or nuance of something ('She appreciated the difficulty of the task'). 'Realized' focuses on the moment of sudden awareness or discovery ('He realized his mistake too late'). Use 'understood' when you simply need to state that comprehension exists; use 'grasped' for quick understanding; use 'comprehended' for deep scholarly understanding; use 'appreciated' when value or nuance is part of the understanding; use 'realized' for a moment of discovery.

graspedcomprehendedappreciatedrealized

Common collocations

Nouns

Adverbs

Phrases

  • make oneself understood
  • it is understood that
  • understood between us

Prepositions

Etymology

Old EnglishMiddle EnglishEnglish

Understood is the past participle of 'understand,' which traces back to Old English 'understandan' — literally 'to stand among or in the midst of,' from 'under-' (meaning 'among, between' in this case) and 'standan' ('to stand'). The core image is of standing in the middle of something to fully grasp it from all sides. The past participle form became established as an independent adjective by the late Middle English period, allowing it to describe not just the act of comprehension but the resulting state (a fully understood concept, an understood agreement, an understood rule).