合体

Noun

 * 1) combination of multiple entities to become one
 * 2) union
 * 3)  combining together and becoming a new, stronger robot
 * 4)  sex

Verb

 * 1)  to combine and become one
 * 2) to unite, to coalesce
 * 3)  to combine together and become a new, stronger robot
 * 4)  to have sex
 * 1)  to have sex
 * 1)  to have sex