guard, guardsman

(literary) member

the usual, ordinary

sentry-box

to watch / to stand guard / to look out, to be wary / to open one's eyes wide

always, invariably, all the time / usually / (with a negative verb) never

(slang) recluse: NEET, hikikomori, etc.

security

security guard / patrol / defense, guard, guarding, policing, security

中々: very, quite, considerably, rather, by no means (with negative verb)