to maintain in one's field of view / (figuratively, by extension) to fix (a goal, commitment, etc.) as something to remember or adhere to

Third-person singular simple present indicative form of keep out

(intransitive) To keep one's counsel.

Third-person singular simple present indicative form of keep the Sabbath

(idiomatic) to maintain (the holiness or sanctity of) the Sabbath (by keeping it holy).

Third-person singular simple present indicative form of keep the lights on

Third-person singular simple present indicative form of keep an eye on

Third-person singular simple present indicative form of keep counsel

(theater) Synonym of hold the book (“to act as prompter”)

Third-person singular simple present indicative form of keep it up