The act of specializing in a field of study, acquiring mastery, specialization.

Taking advantage of or misusing someone's goodwill. / Abuse, exploitation, oppression.

hatchet, a small axe with a short handle

once upon a time

(finance) Any legal tender that can be used in international payments. / (finance) foreign currency / (dated) Any cloth or cardboard sign or banner with a text written on for the purpose of advertisement, announcement or propaganda.

(mainly of something burning, rarely of tearing, splitting apart) violently, quickly, with crackling noises / (by extension) (of a burning sensation or fever) painfully, severely / (by extension) (of temperature) scorching hot

(dated) A person who has gone hysterical due to their affection to God. / (dated) A person who has gone crazy, insane.

marquisate

(dated) A creature, any created thing, especially living.

arrondissement