Semi usually means half eg Semi circle, Semi Final, Semi colan
'Semi-' and 'demi-' both mean half or partly.
have generalized lexical meaning
Semi-centennial means once every half-century.
It is a slang term for a Combination Vehicle meaning it is not a full truck just a partial until it is hooked to a trailer. It actually is a tractor and trailer combination.
Many words use the prefix "semi" (halfway) with a hyphen. ("Semi-sweet chocolate")("Semi-final game")("Semi-trailer") Some words have lost hyphenation, sometimes through use. ("Semiconscious")("Semiquaver")
'Semi-' and 'demi-' both mean half or partly.
"Quasi" is a by-word meaning "partly" or "semi". In the context of this question it can also mean "minor", "insignificant" or "not worth of note".
in the case of animal paws, semi retractable can mean semi retractable claws, meaning that the claws cannot be retracted completely, but maybe just halfway.
Periodic mean after a period like weekly, monthly, semi anually, quartrly etc.
have generalized lexical meaning
Semi processed fruits are usually canned or dried fruits.
half or part of
In poetry, a semi-colon can be used to create a pause or a break in the flow of a sentence. It can also be used to connect two related ideas or images. The use of a semi-colon in poetry is a stylistic choice that can add complexity and depth to the meaning of a poem.
The emoticon with a semi colon followed by a capital L is an unwritten and unrecognized emoticon with the meaning of uncertainty.
the prefix semi means 'half' or 'sort-of' so semi-wild would mean sort of wild, but not totally wild.
Hemi-, demi- and halv- all mean 'half', as does semi-
Permeable mean that it is full time. Semi-permeable is when it is only part of the time.