Meanings
nounINSET day (plural INSET days)
plural INSET days
- UKeducationA day during term-time on which pupils do not attend school, but staff take part in training or complete administrative tasks.
Synonyms: Baker day
Synonyms & antonyms
nounA day during term-time on which pupils do not attend school, but staff take part in training or complete administrative tasks.
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Also see
Origin
Short for in-service training day.
Full word history & related roots →Cite this entry
APA
INSET day. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/INSET%20day
MLA
“INSET day.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/INSET%20day. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “INSET day,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/INSET%20day.
Source: INSET day on Wiktionary, CC BY-SA 4.0.