Seclusion rhymes with:
preclusion, conclusion, exclusion, inclusion, occlusion, preclusion, allusion, collusion, conclusion, delusion, disillusion, exclusion, illusion, inclusion, occlusion, preclusion
Seclusion sounds like:
salesman, salesmen, saleswoman, saleswomen, saligman, salizzoni, salkin, salsman, salzano, salzman, salzmann, schlossman, seligman, seligmann, seligson, selkin, silicon, silicone, silken, slacken, slauson, slawson, sleasman, slocan, slocum, slogan, slokum, socialism