By and Close at hand

By adverb - At, within, or to a short distance or time.

Close at hand and by are semantically related In some cases you can use "Close at hand" instead the word "By" as an adverb or a preposition.

Close at hand adjective - Close in space; within reach.

By and close at hand are semantically related in close topic. Sometimes you can use "By" instead the phrase "Close at hand" as an adverb or a preposition, if it concerns topics such as next to.