两头 (兩頭) liǎng​tóu
both ends numeral
the two ends of a physical object or a stretch of time

Both ends of this wooden stick are pointed.

both parties numeral
the two sides involved in a business deal, dispute, or relationship

He lied to both sides, and in the end, no one believed him.

Frequency

Written text
0.010 per million

Sources

Frequency data
BCC Corpus (BLCU)