duì​tóuduì​tou

compatible

对头 (對頭) duì​tóu frequency
compatible adjective
to be on good terms with or to suit each other

The two of them really hit it off in conversation.

correct adjective
correct, normal, or on the right track

The logic for solving this problem doesn't seem quite right.

对头 (對頭) duì​tou
inimical adjective
being hostile, antagonistic, or in a state of opposition

The two families have been at odds over boundary issues for a long time and frequently get into disputes.

opponent noun
a person or group that is a longstanding enemy, adversary, or rival

The two families have been old rivals for decades.

Frequency

Movie subtitles
5.46 per million appears in 2% of films
Written text
2.26 per million

Sources

Definitions
CC-CEDICT