上位

Noun

 * 1)  higher rank; upper rank
 * 2)  seat of honour; top seat

Verb

 * 1) to get promoted; to move to a higher position
 * 2)  to move into a niche
 * 3)  to successfully displace one's original wife or husband
 * 4)  to exert epistatic effect on another gene
 * 1)  to exert epistatic effect on another gene
 * 1)  to exert epistatic effect on another gene

Noun

 * 1) a higher rank, an upper rank