"clave maestra" in English

core- cue- harpsichord- key- code- keystone- password- boss- cipher- clue- legend- clef

core- keykey

mistress- adept- schoolma'am- schoolmarm- schoolteacher- female teacher- schoolmistress

to rush- to drive- to fasten- to hammer- to nail down- to nail up- to set- to stick- to stick- to thrust- to soak- to hammer in- to jab- to knock in- to nail- to spike- to to drive in- to stick in- to fix … on- to put up- to nail- to cheat- to filch- to swipe- to poke- to screw- to shaft