to enter, to come in, to go in, to get in, to arrive.
to join (a club, company, etc.), to enter (a university, the army, etc.), to enroll (in), to go into (e.g. politics), to get into.
to be contained (in), to be included (in), to be inside (e.g. a box), to come under (a heading), to belong (in a category).
to (be able to) fit (in a container, building, etc.), to be (able to be) held, to be (able to be) accommodated.
to be introduced, to be brought in, to be installed.
to be received, to be obtained.
to be scored (of points), to be won (of votes).
to turn on, to start functioning, to start working.
to enter (a month, season, etc.), to reach (e.g. a climax), to get to (e.g. the main topic), to enter into (e.g. negotiations), to start (doing), to begin.
to form (of a crack, fissure, etc.), to develop.
to be put in (of effort, spirit, feeling, etc.), to be applied (e.g. of strength).