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Definition of moonlighting
moonlighting
/ˈmuːnˌlaɪ.tɪŋ/
moon · light · ing
Adjective:moonlighting
moonlighting Lexical Profile
CEFR
C1
Grade
8
Tier
2
Usage
Rare
Syllables
3
moonlighting Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• noun
1
The practice of working a second job, typically secretly or at night, in addition to one's regular full-time employment.
Example
"Many employment contracts include clauses that explicitly prohibit moonlighting for competing firms."
Synonyms
View all synonyms for moonlighting• adjective
1
Working at an additional job, especially secretly or at night, in addition to one's regular full-time employment.
Example
"The hospital implemented stricter scheduling policies to prevent exhaustion among moonlighting residents."
Synonyms
View all synonyms for moonlighting• Nearby Words
Word Origin & Etymology
Coined in the mid-20th century from the noun 'moonlight', evoking the image of working a second job by the light of the moon after daytime business hours.
Cite this Entry
Wordmom. (2026). Definition of Moonlighting. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/moonlighting