1. occurring or produced every two months
Usage: most common sense
2. occurring or produced twice a month
Usage: less common; sometimes considered ambiguous with the every-two-months sense

1. every two months
2. twice a month
Usage: less common; sometimes considered ambiguous

1. a publication issued every two months or twice a month

Examples

• The magazine is published bimonthly, so we receive a new issue every other month.
• Our bimonthly meetings are scheduled for the first Tuesday of every other month.
• She receives a bimonthly paycheck from her employer.
• The newsletter goes out bimonthly to all subscribers.
• We switched to a bimonthly schedule to reduce printing costs.
• The bimonthly report covers the previous two months of activity.