(Internet slang) protected account (on social media, especially Twitter and Instagram)

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.

(literally) sniff around / (figuratively) nose around, snoop

counterclockwise swastika

key

a corner bracket, either of the pair of brackets 「」, serving as a quotation mark in Chinese and Japanese orthography

鉤虫: velvet worm

velvet worm

(computing) key / (music) key

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