i Register
In some senses, semi is marked as informal, slang, UK, US. Watch for register when choosing this word.
ADJ.
bottom, dated, foreign, lonely, regular
She felt semi-lonely at the party since most of her friends couldn't make it.
VERB + SEMI
built, drive, drives, driving
My father has been driving a semi across the country for twenty years.
SEMI + NOUN
', basis, truck
He drives a semi truck across the country for his job.
PREP.
in, in, on, until
He worked in semi-darkness for hours, trying to find his keys on the floor.
ADV.
physically
She was semi physically disabled after the accident but managed to return to work eventually.