noun, plural bi·month·lies.
Examples from the Web for bi-monthly
He jams the money order window of the post-office for two long days after the bi-monthly pay day.On the Trail of The Immigrant|Edward A. Steiner
The advantage of a bi-monthly mail is of course a distinct question.The Life of Sir Rowland Hill, Vol. II (of 2)|Rowland Hill
A journal of natural history published bi-monthly at Berlin.
A large bi-monthly magazine, strictly technical, devoted largely to theoretical problems of electricity and allied subjects.
We halted at Boonsboro in sight of the field of Antietam, and passed our bi-monthly muster.Three Years in the Sixth Corps|George T. Stevens