Dictionary: “極める”

to reach the peak of something (e.g. luxury, hardships, etc);to be extremely (e.g. busy)

to exhaust completely;to have nothing left (e.g. to say)

to decide;to choose;to determine;to make up one's mind;to resolve;to set one's heart on;to settle;to arrange;to set;to appoint;to fix

to clinch (a victory);to decide (the outcome of a match)

to persist in doing;to go through with

to always do;to have made a habit of

to take for granted;to assume

to dress up;to dress to kill;to dress to the nines

to carry out successfully (a move in sports, a pose in dance, etc.);to succeed in doing

to immobilize with a double-arm lock (in sumo, judo, etc.)

to eat or drink something;to take illegal drugs