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

patient; persevering; of great fortitude

great luck/fortune

(video games, informal) strong character

accent; stress

(Classical Japanese, archaic) to compel, compulse, force

knowledge is power

a boast of one's strength / a person who boasts of his or her own strength

Kyūjitai form of 体力 bodily strength, physical power