to lock (a door, etc.) / (Internet slang) (of a SNS account) to change privacy setting to limited people and posts and/or profiles can be seen by limited people.

being from a certain place / coming out

absolutely, categorically, certainly, definitely, surely / inevitably, invariably, without fail, necessarily, always

Please do (action)

Please do not (do)

please give me / (expressing a request) please do something for me

please give me / (polite, imperative) please do something for me; expressing a request

a house / one's own home / a home, household / a family

key (tool for opening or locking something) / key; clue (important fact for solving something) / lock

(computing) key / (music) key