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efficiency vs efficient

efficient vs efficiency

efficiency is a noun but efficient is not a noun.

efficiency is not an adjective while efficient is an adjective.

Word NounAdjectiveVerbAdverb
efficiency Yes No No No
efficient No Yes No No
efficiency (noun) efficient (noun)
skillfulness in avoiding wasted time and effort
the ratio of the output to the input of any system
efficiency (adjective) efficient (adjective)
being effective without wasting time or effort or expense
able to accomplish a purpose; functioning effectively
Difference between efficiency and efficient

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