-ru Godan/u-verb

1. to enter; to go in; to get in; to come in (mainly used in fixed expressions and literary language)
2. to set (of the sun or moon); to sink; to go down
3. to attain (nirvana, enlightenment, etc.); to achieve; to reach (e.g. a climax)

suffix

4. to do fully; to do intently; to do sincerely; to do deeply; to feel keenly (after -masu stem of verb)
5. to (reach a state) completely (after -masu stem of verb)

-ru Godan/u-verb

1. to enter; to come in; to go in; to get in; to arrive
2. 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
3. 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)
4. to (be able to) fit (in a container, building, etc.); to be (able to be) held; to be (able to be) accommodated
5. to be introduced; to be brought in; to be installed
6. to be received; to be obtained
7. to be scored (of points); to be won (of votes)
8. to turn on; to start functioning; to start working
9. 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
10. to form (of a crack, fissure, etc.); to develop
11. to be put in (of effort, spirit, feeling, etc.); to be applied (e.g. of strength)
12. to be ready (of tea, coffee, etc.); to be made
13. to enter the body (of alcohol); to become drunk