See also: Appendix:Variations of "pre"
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- Before; used to form words meaning "in front of (in space)".
- Before; used to form words meaning "before (in time)".
- This prefix is usually prefixed to words without using a hyphen (for example, prefix, predate). A hyphen is used in the following cases:
- Where excluding a hyphen would be likely to lead to a mispronunciation of the word because "pre" appears not to be a complete syllable (for example, "pre-yaw course", which could be read as "prey aw course" if unhyphenated).
- Always in British English before the letter e (for example, pre-existing)
- Often in British English before other vowels (for example, pre-operative);
- Always in all varieties of English before a character other than a letter (for example, pre-1960).
terms derived from pre-
- Before; used to form words meaning "in front of" or "before".
- Before; used to form words meaning superiority or excellence.
- Prefix prepended to adjectives and adverbs to denote an excessiveness of a feature.