régler

règle +‎ -er, or borrowed from Latin rēgulāre, present active infinitive of rēgulō. See also réguler.

• IPA^(key): /ʁe.ɡle/

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régler

1. to sort out, to settle (a problem, a bill)

   On va régler le problème tout de suite.

   We will sort out that problem immediately.

2. to set, to adjust

   Régler le réveil pour 8 heures.

   Set the alarm for 8 o'clock.

3. to regulate
4. to rule; to put lines on.

   Régler le papier.

This verb is conjugated like céder. It is a regular -er verb, except that its last stem vowel alternates between /e/ (written ‘é’) and /ɛ/ (written ‘è’), with the latter being used before mute ‘e’. One special case is the future stem, used in the future and the conditional. Before 1990, the future stem of such verbs was written régler-, reflecting the historic pronunciation /e/. In 1990, the French Academy recommended that it be written règler-, reflecting the now common pronunciation /ɛ/, thereby making this distinction consistent throughout the conjugation (and also matching in this regard the conjugations of verbs like lever and jeter). Both spellings are in use today, and both are therefore given here.

• “régler” in le Trésor de la langue française informatisé (The Digitized Treasury of the French Language).

• grêler