Countable Nouns Ending in CY and Containing EF

This list gathers 9 English countable nouns ending in CY and containing EF, such as Efficiency, Deficiency, Efficacy, Inefficiency, Immunodeficiency, Chieftaincy and Refulgency. Use the sorting controls below to organize entries by length, or consult our noun grammar guide to review singular and plural count rules.

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Starts with C
2 words
chieftaincy
counterefficiency
Starts with D
1 words
deficiency
Starts with E
2 words
efficiency
efficacy
Starts with I
2 words
inefficiency
immunodeficiency
Starts with R
1 words
refulgency
Starts with S
1 words
superefficiency

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