1Once more; afresh; anew.‘reaccustom’
- 1.1With return to a previous state.
2(also red-)In return; mutually.‘react’
- 2.1In opposition.‘repel’
3Behind or after.‘relic’
- 3.1In a withdrawn state.‘recluse’
- 3.2Back and away; down.‘recede’
4With frequentative or intensive force.‘refine’
5With negative force.
In modern English the tendency is for words formed with prefixes such as re- to be unhyphenated: restore, remain, reacquaint. One general exception to this is when the word to which re- attaches begins with e: in this case a hyphen is often inserted for clarity: re-examine, re-enter, re-enact. A hyphen is sometimes also used where the word formed with the prefix would be identical to an already existing word: re-cover (meaning ‘cover again’, as in we decided to re-cover the dining-room chairs) not recover (meaning ‘get better in health’). Similar guidelines apply to other prefixes, such as pre-
From Latin re-, red- ‘again, back’.