| ALYSSUMS | • alyssums n. Plural of alyssum. • ALYSSUM n. a plant of the Alyssum genus of low-growing, cruciferous plants, also ALISON.
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| CHECKSUMS | • checksums n. Plural of checksum. • CHECKSUM n. a numerical summary used to detect errors in data.
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| CUSUMS | • CUSUMs n. Plural of CUSUM. • CUSUM n. a statistical technique that attempts to identify individuals by their characteristic use of language.
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| GRASSUMS | • grassums n. Plural of grassum. • GRASSUM n. in Scots law, a lump sum paid in addition to rent by a person taking a lease of landed property.
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| GYPSUMS | • gypsums n. Plural of gypsum. • GYPSUM n. hydrated calcium sulphate, a soft mineral used for making plaster of Paris and as a fertilizer.
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| HELICHRYSUMS | • helichrysums n. Plural of helichrysum. • HELICHRYSUM n. a genus of composite plants, the flowers of which keep their colour and shape when dried.
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| ODONTOGLOSSUMS | • odontoglossums n. Plural of odontoglossum. • ODONTOGLOSSUM n. any of a genus of widely cultivated tropical American orchids.
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| OPOSSUMS | • opossums n. Plural of opossum. • OPOSSUM n. (Native American) any of various small or medium-sized marsupial mammals, mostly arboreal.
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| OUTSUMS | • outsums v. Third-person singular simple present indicative form of outsum. • OUTSUM v. to outnumber.
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| PENSUMS | • pensums n. Plural of pensum. • PENSUM n. (Latin) a task; a school imposition.
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| POSSUMS | • possums n. Plural of possum. • POSSUM v. to feign ignorance (i.e. to play possum).
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| RESPONSUMS | • RESPONSUM n. (Latin) in rabbinical literature, a written response to a question of doctrine. | 
| SARGASSUMS | • sargassums n. Plural of sargassum. • SARGASSUM n. (Latin) a genus of algae including the gulfweed, also SARGASSO.
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| SUMS | • sums n. Plural of sum. • sums v. Third-person singular simple present indicative form of sum.
 • Sums prop.n. Plural of Sum.
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