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52 words ending with ps, 4 letters long

alps amps asps baps bops caps cops cups dips dups fops gaps gips gyps haps hips hops imps keps kips kops laps lips lops maps mops naps nips oops paps peps pips pops pups raps rips saps sips sops sups taps tips tops tups umps waps wops yaps yips yups zaps zips