re

R r

Transcription

- US Pronunciation
- US IPA
- UK Pronunciation
- UK IPA
- [rey]
- /reɪ/
- /riː/

- US Pronunciation
- US IPA
- [rey]
- /reɪ/

Definitions of re word

abbreviation Technical meaning of RE regular expression 3
abbreviation RE Ra. 1
preposition re in the matter of. 1
noun Definition of re in Technology 1. (text, operating system) (regexp, RE) One of the wild card patterns used by Perl and other languages, following Unix utilities such as grep, sed, and awk and editors such as vi and Emacs. Regular expressions use conventions similar to but more elaborate than those described under glob. A regular expression is a sequence of characters with the following meanings (in Perl, other flavours vary): An ordinary character (not one of the special characters discussed below) matches that character. A backslash (\) followed by any special character matches the special character itself. The special characters are: "." matches any character except newline; "RE*" (where RE is any regular expression and the "*" is called the "Kleene star") matches zero or more occurrences of RE. If there is any choice, the longest leftmost matching string is chosen. "^" at the beginning of an RE matches the start of a line and "$" at the end of an RE matches the end of a line. (RE) matches whatever RE matches and \N, where N is a digit, matches whatever was matched by the RE between the Nth "(" and its corresponding ")" earlier in the same RE. Many flavours use $RE$ instead of just (RE). The concatenation of REs is a RE that matches the concatenation of the strings matched by each RE. RE1 | RE2 matches whatever RE1 or RE2 matches. \< matches the beginning of a word and \> matches the end of a word. Many flavours use "\b" instead as the special character for "word boundary". RE{M} matches M occurences of RE. RE{M,} matches M or more occurences of RE. RE{M,N} matches between M and N occurences. Other flavours use RE\{M\} etc. Perl provides several "quote-like" operators for writing REs, including the common // form and less common ??. A comprehensive survey of regexp flavours is found in Friedl 1997 (see below). 2. Any description of a pattern composed from combinations of symbols and the three operators: Concatenation - pattern A concatenated with B matches a match for A followed by a match for B. Or - pattern A-or-B matches either a match for A or a match for B. Closure - zero or more matches for a pattern. The earliest form of regular expressions (and the term itself) were invented by mathematician Stephen Cole Kleene in the mid-1950s, as a notation to easily manipulate "regular sets", formal descriptions of the behaviour of finite state machines, in regular algebra. 1
noun Technical meaning of re 1. (networking) The country code for Reunion. 2. (chat) /re-/ (From "rehi") Hello again. A greeting originating in, and most often heard on, Internet interactive conversation services. 1
noun re You use re in business letters, faxes, or other documents to introduce a subject or item which you are going to discuss or refer to in detail. 0

See all 18 definitions of re

Information block about the term

Origin of re

First appearance:

before 1400

One of the 24% oldest English words

late Middle English word dating back to 1400-50; See origin at gamut

Historical Comparancy

Parts of speech for Re

noun

adjective

verb

adverb

pronoun

preposition

conjunction

determiner

exclamation

Full grammatical hierarchy of Re

re popularity

A common word. It’s meaning is known to most children of preschool age. About 89% of English native speakers know the meaning and use the word.

Most Europeans know this English word. The frequency of it’s usage is somewhere between "mom" and "screwdriver".

re usage trend in Literature

This diagram is provided by Google Ngram Viewer

Synonyms for re

prep re

anent — lying against; alongside
as for — You use as for and as to at the beginning of a sentence in order to introduce a slightly different subject that is still connected to the previous one.
as regards — You can use as regards to indicate the subject that is being talked or written about.
as to — with reference to
concerning — You use concerning to indicate what a question or piece of information is about.

verb re

bottoming — the lowest level of foundation material for a road or other structure
hinge on — a jointed device or flexible piece on which a door, gate, shutter, lid, or other attached part turns, swings, or moves.
hung up on — simple past tense and past participle of hang.

preposition re

about — You use about to introduce who or what something relates to or concerns.

All 11 Synonyms of re

Antonyms for re

abbreviation re

mire — a tract or area of wet, swampy ground; bog; marsh.

Just one Antonym for re

Matching words

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