interpolate
C1Formal, Technical
Definition
Meaning
To insert something, especially words or figures, into a text or data set.
1. To estimate a value between two known values in a data sequence. 2. To interject or introduce remarks into a conversation or speech.
Linguistics
Semantic Notes
In mathematics and computing, it denotes precise estimation; in general use, it suggests insertion, often with a nuance of altering or interrupting the original flow.
Dialectal Variation
British vs American Usage
Differences
Usage is nearly identical in mathematical/technical contexts. In literary or conversational contexts, 'interject' or 'insert' may be more common alternatives in both varieties.
Connotations
In technical registers, neutral. In general conversation, can imply an unwelcome or pedantic interruption.
Frequency
More frequent in academic, scientific, and data analysis contexts than in everyday speech in both regions.
Vocabulary
Collocations
Grammar
Valency Patterns
interpolate something (into something)interpolate between A and BVocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “None common”
Usage
Context Usage
Business
Rare; used in data analysis reports: 'We interpolated the missing quarterly figures.'
Academic
Common in mathematics, statistics, and textual analysis: 'The scribe interpolated a passage from a later source.'
Everyday
Very rare; 'interject' is preferred for conversational interruptions.
Technical
Core term in mathematics, computer graphics, and signal processing for estimating intermediate values.
Examples
By Part of Speech
verb
British English
- The historian warned that later editors may have interpolated the controversial paragraph.
- To create a smoother curve, we need to interpolate the missing values.
American English
- The algorithm interpolates frames to create a 60fps video.
- He constantly interpolated his own opinions into her narrative.
adverb
British English
- N/A
American English
- N/A
adjective
British English
- N/A
American English
- N/A
Examples
By CEFR Level
- (Not typical at this level)
- The teacher asked us not to interpolate comments while she was speaking.
- Using this software, you can interpolate colour gradients between two selected points.
- Scholars debate whether the famed soliloquy was an original part of the manuscript or a later interpolation.
Learning
Memory Aids
Mnemonic
Think of 'INTERpolate' as putting something IN BETWEEN (INTER) other points or words.
Conceptual Metaphor
FILLING GAPS / BRIDGING SPACES
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Do not confuse with 'интерполировать' (which is a direct cognate but highly technical). Avoid using it for general 'insertion' ('вставлять') or 'interruption' ('перебивать').
Common Mistakes
- Using 'interpolate' to mean 'extrapolate' (estimating outside a data range).
- Using it in casual speech where 'interject' or 'butt in' is more natural.
Practice
Quiz
In which context is 'interpolate' used INCORRECTLY?
FAQ
Frequently Asked Questions
Interpolation estimates values within a known range of data. Extrapolation estimates values outside a known range.
It is very formal. In conversation, 'interject', 'butt in', or 'insert' are more common for similar ideas.
No. While central to maths and computing, it is also used in literary criticism for text that editors have inserted into manuscripts.
It is almost exclusively a transitive verb. The noun form is 'interpolation'.
Collections
Part of a collection
Advanced Academic Verbs
C2 · 49 words · Sophisticated verbs for scholarly discourse.