Learn how to say Accumulated correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word accumulate:
gather together or acquire an increasing number or quantity of:
investigators have yet to accumulate enough evidence
gradually gather or acquire (a resulting whole):
her goal was to accumulate a huge fortune
[no object] gather; build up:
the toxin accumulated in their bodies
late 15th century: from Latin accumulat- ‘heaped up’, from the verb accumulare, from ad- ‘to’ + cumulus ‘a heap’
Spell accumulate and the related word accumulation with a double c and one m.