biyearly

bi·year·ly

 (bī-yîr′lē)

adj.

1. Happening every two years. See Usage Note at bi-¹.

2. Happening twice a year; semiyearly.

adv.

1. Every two years.

2. Twice a year; semiyearly.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

biyearly

(baɪˈjɪəlɪ)

adj, adv

1. every two years; biennial or biennially

2. (often avoided because of confusion with sense 1) twice a year; biannual or biannually. See bi-¹

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

bi•year•ly

(baɪˈyɪər li)

adj.

1. happening every two years; biennial.

2. happening twice a year; biannual.

adv.

3. every two years.

4. twice yearly.

[1875–80]

usage: See bi- ¹.

Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

Thesaurus

Adj.	1.	biyearly - occurring every second year; "they met at biennial conventions" biennial periodic, periodical - happening or recurring at regular intervals; "the periodic appearance of the seventeen-year locust"
	2.	biyearly - occurring or payable twice each year biannual, half-yearly, semiannual periodic, periodical - happening or recurring at regular intervals; "the periodic appearance of the seventeen-year locust"
Adv.	1.	biyearly - every two years; "this festival takes places biennially" biennially
	2.	biyearly - twice a year semiannually

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