isolate, alternate, distance, separate, gulf
隔 centers on creating or having a gap that separates things: isolating, distancing, or alternating between two sides. The gulf sense is a strong spatial separation.
隔 combines ⻖ (mound, hill) with 鬲, which likely contributes the sound and the idea of a barrier or separation. The mound radical suggests a physical obstacle that creates distance.
The left side ⻖ is a hill, and the right side 鬲 looks like a cauldron with legs. Picture a hill separating you from a cooking pot, creating a gulf that isolates you from the food.
For カク, imagine a huge crack in the ground that isolates two sides: crack -> カク, and the gap separates everything.
isolation; segregation; separation; quarantine
distant; remote; isolated
space; interval
partition; distinction
isolation; separation; remoteness; seclusion; reclusion; inaccessibility; sequestration
every other week; every two weeks
distance; difference; gap; disparity; gulf; chasm; estrangement
barrier wall; bulkhead; partition; septum; diaphragm
diaphragm
at regular intervals; evenly spaced
to separate (by distance, time, etc.); to isolate; to partition; to divide
every second month; every other month
every other; second; alternate
separation of ages; being of a different age
biennially; every second year; every other year
every other day; every second day
virus removal; virus sweep
interblock gap; IBG
interrecord gap; IRG
inferior phrenic artery