prefix
every other; alternate; second
Prefix used with time units (日, 週, 月, 年, etc.) to mean 'every other' or 'alternate'. Common in words like 隔日 (every other day) and 隔週 (every other week).
この薬は隔日に服用してください。
Please take this medicine every other day.
隔週で会議が開かれる。
Meetings are held every other week.