准 vs 准确（近义词）

1)Both 准 and 准确 are ajectives.准 is also colloquial and 准确 is more literary.准 is also a verb and adverb.Their differences in usage are as follows:
2)The adjectives 准and 准确 both mean"accurate.准stersses the sense of there being no mistake while 准确 stresses that the result of an action entirely coincides
with reality or demand.准 often functions as predicate and complement ,while 准确，besides being a predicate and complement can also function as attributive and adverbial.e.g.
3)In examples①and②the stress is on no mistake and both are idiomatic expressions ,so 准 is used.In examples③and④,as predicate and complement the two words are interchangeable with different stresses.In examples ⑤⑥and⑦，as attributive and adverbial.准确 is used(because the following phrase is polysyllabic)
,and 准 cannot be so used.
4)The adjective 准 can also mean"ascertained or determined",while 准确 has no such meaning.

1)准 is also a verb meaning "to allow, to permit".准确 has no such meaning.e.g:

1)准 is also an adverb.准确 has no such usage.
2)To indicate "an estimation (the speaker is sure of his or her estimation)":
3)To indicate " certainty".e.g: