light up like a Christmas tree

verb

To become very brightly lit.

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Meanings

verblight up like a Christmas tree (third-person singular simple present lights up like a Christmas tree, present participle lighting up like a Christmas tree, simple past and past participle lit up like a Christmas tree)

present singular third person lights up like a Christmas tree · participle present lighting up like a Christmas tree · participle past lit up like a Christmas tree · past lit up like a Christmas tree

  1. informalsimileTo become very brightly lit.
  2. figurativelyTo become very bright and cheerful.
Cite this entry
APA

light up like a Christmas tree. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/light%20up%20like%20a%20Christmas%20tree

MLA

“light up like a Christmas tree.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/light%20up%20like%20a%20Christmas%20tree. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “light up like a Christmas tree,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/light%20up%20like%20a%20Christmas%20tree.

Source: light up like a Christmas tree on Wiktionary, CC BY-SA 4.0.