backsight

Fetched 2026-10-26 (cache).

Synonyms: backlight, jacklight, blacklight, back light, backsights, macknight, bar sight

Antonyms: backlight, jacklight, blacklight, back light, backsights, macknight, bar sight

Related words from Datamuse; suggestions, not definitions.

Noun

1. {{senseid|en|Q102426920}}<!--Q102426920 and Q15901743 need merging at Wikidata; I will explore doing that myself soon--> The rear sight of a [[firearm]].
2. {{lb|en|surveying}} A measurement or reading taken back towards a point of known [[elevation]], used to calculate the height of the surveying instrument (theodolite, transit, total station).
3. {{lb|en|surveying}} A measurement of a previously shot point, used to set the angle to zero when [[occupy]]ing a new position.

Verb

1. {{lb|en|surveying}} To [[shoot]] a backsight.

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.