Many re-'s, per below.
Regathering (Dt. 30:1-5)
Returning (Dt. 30:8)
Resurrection (Dan. 12:2)
Regeneration (Mt. 19:28) [national, vs. individual in this age (Tit. 3:5)]
Redemption (Lk. 21:28)
Restoration (Acts 1:6)
Repentance (Acts 3:19)
Refreshing (Acts 3:19)
Restitution (Acts 3:21)
Reformation (Heb. 9:10)