cashing in (verb) exchange: trade
Sinonime: admission,
alpha,
birth,
bow,
celebration, convocation, countdown, curtain-raiser,
dawn, dawning,
genesis,
graduation,
initiation, kickoff,
onset, opener,
opening, outset, proem, services,
start, starting point, tee off
Antonime: cessation,
completion,
end,
ending,
finish,
stop