restore, return to, revert, resume
復 centers on going back to a previous state: restoring something, returning to a place or condition, reverting to an earlier form, or resuming an activity after a pause.
復 combines 彳 (movement) with 复, which likely contributes both sound and the idea of returning or repeating. The character expresses going back or restoring.
The left side 彳 suggests movement, and the right side 复 looks like a person retracing steps. Picture someone walking back along a path to restore what was left behind.
For フク, imagine restoring an old book: you carefully put back the cover and say 'fook' (like a soft 'hook') as it snaps into place. Fook -> フク.
revival (of an old system, custom, fashion, etc.); restoration; return; comeback
restoration; recovery; rehabilitation; return; improvement
return; reversion; comeback; reinstatement
revival; reconstruction; restoration; rebuilding; recovery; renaissance
revenge
restoration; repair; mending
making a round trip; going and returning; coming and going
restoration; restitution; rehabilitation
restoration (to the original state or location); reconstruction; restitution
retaliation; revenge; reprisal; retribution
republication; reissue; reprinting; reproduction
review (of learned material); revision
reconciliation (with one's spouse, adopted child, etc.)
repetition; repeat; reiteration
reinstatement; reappointment
rehabilitation; reinstatement; restoration of rights
recovery; return to form; regaining one's (usual) form
decoding; decryption
reposition
revival; restoration