(an instance of) the process of collecting something

gathering or amassing

the most interesting, intense, violent, energetic etc part (of an event, game, speech, storm etc)

peak, culmination

attention

consolidation of effort

music to be played, a noise made, with increasing loudness

increase to climax

(an amount as the result of) increasing; to become greater in size, number, degree etc

addition, growth

the act, state, of being inflated; (a rise in prices brought about by) the expansion of the supply of money, credit etc

increase, swelling

a small hill; upward slope; an increase (in value, temperature etc); a progress (in development)

increase, improvement

a forward or upward movement; (of feelings) sudden growth

rush, usually of liquid