noun
One of four equal parts
fourth, one-fourth part, portion, fraction, division, span, three months, 90 days, semester, school term, quarter of an hour, fifteen minutes, quarter section, quadrant; see also part 1.
One quarter of a dollar
twenty-five cents, coin, two bits*; see money 1.
Direction
bearing, region, point; see direction 1.
A section of a community
neighborhood, district, section; see area 2.
Mercy
clemency, compassion, indulgence; see mercy 1.
at close quarters