Adjectives

(s)done, through, through withhaving finished or arrived at completion“certain to make history before he's done”, “it's a done deed”, “after the treatment, the patient is through except for follow-up”, “almost through with his studies”
(s)through(of a route or journey etc.) continuing without requiring stops or changes“a through street”, “a through bus”, “through traffic”

Adverbs

(r)throughfrom beginning to end“read this book through”
(r)throughover the whole distance“this bus goes through to New York”
(r)throughto completion“think this through very carefully!”
(r)throughin diameter“this cylinder measures 15 inches through”
(r)through, through and throughthroughout the entire extent“got soaked through in the rain”, “I'm frozen through”, “a letter shot through with the writer's personality”, “knew him through and through”, “boards rotten through and through”