Here is a list of nouns that start with EXP.
expanse, expansion, expansionist, expectancy, expectation
expediency, expedient, expedition, expenditure, expense
experience, experiment, experimentalism, experimentation, experimenter
expert, expertise, expiation, expiration, explanation
exploit, exploitation, exploration, explorer, explosion
explosive, export, expose, exposition, exposure
expression, expressionism, expressionist, expressway, expulsion
expunging, expurgation
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