noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   plural of semi form-of, plural
2. 2
   A small bronze coin minted during the Roman Republic, valued at half an as. historical

Synonyms

All synonyms

demi-half-quasi-18 wheeler18-wheelerarticulated lorry

Example

More examples

"Semis are allowed to drive in Algiers with proper permits."

Etymology

Borrowed from Latin sēmis.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.