風呂へ入ったか。

bath; bathtub; bathroom; bathhouse; room for drying lacquerware; base (wooden joint connecting the blade of a hoe, spade, etc., to the handle)

indicates direction or goal (e.g. "to")

to get in; to go in; to come in; to flow into; to set; to set in

indicates a question (sometimes rhetorical); or; whether or not; some- (e.g. something, someone); indicates doubt, uncertainty, etc.; emphatic prefix; suffix forming adjectives or adverbs; in that way