I was recently involved in a friendly yet heated debate over "every other week" and "every other month" being or not formal enough for contract terms and conditions, or being colloquial terms.
- "The parties agree to sync on the state every other week."
- "The parties agree on a grammar bull fight every other month."
As non-native speakers we both were not sure if this is sufficiently formal language.
Bonus question: If "every other month" and "every other week" are colloquial, what would be formal terms for a contract?