Word Pronunciation & Dictionary

negative lookahead

Word Rarity Very rare

Frequency: Zipf frequency 1.80 in modern English

Syllables: neg-a-tive looka-head
IPA

29

Scrabble Score

17

Letters

4

Syllables

12

Unique Chars

Meaning

noun

The analysis of the subsequent characters absence before the regular expression is matched (symbol: ?!).

Countable; Uncountable

Example Sentences

"Negative lookahead works just like positive lookahead, except that whereas positive lookahead matches when the regex inside the lookahead matches, negative lookahead matches when the regex inside the lookahead failed to match."

Etymology

From negative + lookahead.

Usage

Inflected Forms

negative lookaheads (plural)

Questions

What does negative lookahead mean?: The analysis of the subsequent characters absence before the regular expression is matched (symbol: ?!).
Where does negative lookahead come from?: From negative + lookahead.

How to pronounce negative lookahead

Open the pronunciation page — Open the Speakur entry for “negative lookahead”.
Read the phonetic spelling — Read the IPA spelling () so you know which sounds to aim for.
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