応 - apply, answer, yes

hailing each other

side effect (of a vaccine)

feeling in the hands (when striking, poking, etc.); (feeling of) resistance

correspondence (to); equivalence

(transplant) rejection

unsuited; inappropriate; improper; undeserved

appropriate; adequate; suitable; fitting; worthy

dealing with (people, customers, complaints, etc.); receiving (callers, visitors, etc.); attending to; handling; serving

to respond; to satisfy; to accept; to comply with; to apply for

(practical) application; putting to practical use

exchange (of words, views, punches, cups, etc.); give-and-take

reply; answer; response