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Definition of wilco

wilco

/ˈwɪl.koʊ/
wil · co
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wilco Lexical Profile

wilco Game Scores & Validity

• interjection

1

A radiotelephony procedure word used to indicate that a message has been received, understood, and will be complied with.

Example

""Maintain altitude at five thousand feet," the air traffic controller instructed, to which the pilot replied, "Wilco.""

Synonyms
View all synonyms for wilco

Word Nuance & Usage

In strict aviation and military radiotelephony, 'roger' means only that a transmission has been received and understood, whereas 'wilco' means both that the message was understood and that the speaker will comply with its instructions; consequently, saying 'roger wilco' is considered redundant by professionals.

• Rhymes for wilco

• Nearby Words

wigmaker
wigwam
wiki
wilco
wild
wild bergamot
wild boar

Word Origin & Etymology

Coined in the 1930s as a radiotelephony procedure word formed as a syllabic abbreviation of 'will comply'.

Cite this Entry

Wordmom. (2026). Definition of Wilco. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/wilco
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