The answer is:
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Monster (n.) — Something of unnatural size, shape, or quality; a prodigy; an enormity; a marvel.
Monster (n.) — Specifically , an animal or plant departing greatly from the usual type, as by having too many limbs.
Monster (n.) — Any thing or person of unnatural or excessive ugliness, deformity, wickedness, or cruelty.
Monster (a.) — Monstrous in size.
Monster (v. t.) — To make monstrous.