加 - add, addition, increase

participation; joining; entry

participant; entrant; player; competitor

irresponsible; perfunctory; careless

perpetrator; wrong-doer; aggressor; assailant; offender; at-fault party (e.g. in an accident)

heavy additional tax(ation)

that's enough!; cut it out!; get a life!

to be added to; to be appended

joining (a club, organization, etc.); becoming a member; entry; admission; subscription; affiliation; signing (e.g. a treaty); taking out (insurance)

pressurization; applying pressure (to)

to add; to add up; to sum up; to append; to annex

food additive

doubling