意志【いし】
will, volition, intention, intent, determination
大志【たいし】
ambition, aspiration
同志【どうし】
like-mindedness, (being of the) same mind, shared sentiment, comrade, fellow, kindred soul
志願【しがん】
aspiration, volunteering, desire, application
志す【こころざす】
to plan, to intend, to aspire to, to set aims (sights on)
志望【しぼう】
wish, desire, ambition, choice
志向【しこう】
intention, aim, preference (for), orientation (towards a goal)
有志【ゆうし】
interested person, volunteer, supporter
闘志【とうし】
fighting spirit, (will to) fight
遺志【いし】
wishes of a deceased person, dying wish
篤志家【とくしか】
charitable person, philanthropist, volunteer, supporter
志士【しし】
imperial loyalist samurai of the Bakumatsu-era, patriots, idealists willing to sacrifice themselves for the good of the nation
立志【りっし】
fixing one's aim in life, deciding one's life goal
