strong, durable, powerful / strong, competent, good / high tolerance, resilient

strength

a freedom fighter

(dated) "company warrior": businessman who puts his all into work

everything

(colloquial) current boyfriend

(slang) Alternative form of 彼氏 (kareshi, “boyfriend”)

everyone, one and all

not always, not necessarily / not completely / not exactly, not strictly speaking, not technically

stiffen / for a person to freeze, for one's expression to freeze