Definition of resight in US English:

resight

verb

  • 1with object To see or catch sight of again.

  • 2To sight in (a firearm) for a second or subsequent time.

  • 3no object To aim (a firearm, artillery piece, etc.) at a target again. Also without object. Compare "sight".

Origin

Mid 19th century. From re- + sight.

Pronunciation

resight

/ˌriːˈsʌɪt/