Examples of 400th from BoostVocab

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400th

Synonyms of 400th Antonyms of 400th Examples of 400th Usage of 400th Parts of 400th Definition that contains 400th Words sounding like 400th Explanation of 400th

adjective
the ordinal number of four hundred in counting order
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Similar:

four-hundredth ordinal

Definition that contains 400th

quatercentennial the 400th anniversary (or the celebration of it)
quatercentenary the 400th anniversary (or the celebration of it)