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From WordWeb:

Annual: Occurring or payable every year

What is the corresponding single word for occurring every two year, three year, four year etc.

I understand that it's surely not exhaustively defined for all possible year gap, but how far is it define?

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closed as general reference by Alenanno, kiamlaluno, JoseK, JSBձոգչ, RegDwigнt Jul 29 '11 at 14:13

This question is too basic; it can be definitively and permanently answered by a single link to a standard internet reference source designed specifically to find that type of information.If this question can be reworded to fit the rules in the help center, please edit the question.

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1 Answer

Here are the direct answers to the ones you've asked and a few more.

2 years Biennial
3 years Triennial
4 years Quadrennial
5 years Quinquennial
6 years Sexennial
7 years Septennial
8 years Octennial
9 years Novennial
10 years Decennial

Read here for a list of more yearly multiples

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There's also Sesquiennial in the question Is there a term to describe an event which happens every 18 months. –  Alenanno Jul 29 '11 at 10:57
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@Alenanno: and you did notice it was I that answered that one too ;) –  JoseK Jul 29 '11 at 11:04
    
ahahah no! I didn't lol –  Alenanno Jul 29 '11 at 11:16
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