उद्‌घाटन

his, her, its (oblique/plural possession)

they (as subject of past action)

that (before postpositions)

him, her, it (as object)

them (as object)

his, her, its (feminine possession)

answer, reply, response

their, theirs (referring to those people)

he/she (as subject of past action)

his, her, its (referring to that person/thing)

use, usage, utilization

that very, just that, only that