| 释义 |
WordReference Random House Learner's Dictionary of American English © 2024sem•i /ˈsɛmi, ˈsɛmaɪ/USA pronunciation n. [countable], pl. -is. - Transport, Informal Termsa semitrailer:a jackknifed semi blocking six lanes of traffic.
- Informal Terms, Often, semis. [plural] a semifinal contest or round.
semi-, prefix. - Pronouns
- semi- comes from Latin, where it has the meaning "half'':semiannual; semicircle.
- semi- is also used to mean "partially;
partly;
somewhat'':semiautomatic;semidetached;semiformal. - semi- is also used to mean "happening or occurring twice in (a certain length of time)'':semiannual.
WordReference Random House Unabridged Dictionary of American English © 2024sem•i (sem′ē, sem′ī),USA pronunciation n. [Informal.]- Transportsemitrailer (def. 1).
- Often, semis. semifinal (def. 3).
semi-, - Pronounsa combining form borrowed from Latin, meaning "half,'' freely prefixed to English words of any origin, now sometimes with the senses "partially,'' "incompletely,'' "somewhat'':semiautomatic; semimonthly;semisophisticated.
- Latin sēmi-; cognate with Old English sōm-, sām- half (modern dialect, dialectal sam-), Old High German sāmi-, Sanskrit sāmi-, Greek hēmi-; compare sesqui-
- Middle English
Collins Concise English Dictionary © HarperCollins Publishers:: semi /ˈsɛmɪ/ n ( pl semis)- Brit a semidetached house
- short for semifinal
Collins Concise English Dictionary © HarperCollins Publishers:: semi- prefix - half: semicircle
- partially, partly, not completely, or almost: semiprofessional, semifinal
- occurring twice in a specified period of time: semiannual, semiweekly
Etymology: from Latin; compare Old English sōm-, sām- half, Greek hēmi- |