偶 - accidentally, even number, couple

sudden outbreak; accidental; incidental

image; idol; statue

coincidence; chance; accident; fortuity

even number

spouse; wife; husband; partner

by chance; by accident; accidentally; happen to (be, do); unexpectedly; casually

occasionally; once in a while; now and then

even parity

contingency procedure

anisogamete

gametangium

gametogenesis; gamete formation