| ASP | • asp n. (Archaic) A water snake. • asp n. A venomous viper native to southwestern Europe (Vipera aspis).
 • asp n. The Egyptian cobra (Naja haje).
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| OPS | • ops n. Plural of op. • ops n. (Informal) operations.
 • ops n. (Internet, IRC) operator status.
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| PAS | • pas n. (Now rare) The right of going foremost; precedence. • pas n. A step in a dance.
 • pas n. Plural of pa.
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| PES | • pes n. The foot of a human. • pes n. The hoof of a quadruped.
 • pes n. Clubfoot or talipes.
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| PIS | • pis n. Plural of pi. • PIs n. Plural of PI.
 • PI v. to mix type indiscriminately.
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| POS | • pos adj. (UK, slang) Clipping of positive. • pos adj. (Slang) Clipping of HIV positive.
 • pos n. Plural of po.
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| PSI | • psi n. (Countable) The twenty-third letter of Classical and Modern Greek and the twenty-fifth letter of Old… • psi n. (Uncountable, parapsychology) A form of psychic energy.
 • psi sym. Pounds per square inch (an imperial unit of pressure).
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| PST | • pst interj. Alternative form of psst. • PST n. Initialism of Pacific Standard Time.
 • PST n. Initialism of Palestinian Standard Time.
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| PUS | • pus n. A whitish-yellow or yellow substance composed primarily of dead white blood cells and dead pyogenic… • pus v. (Rare) To emit pus.
 • pus sym. (International standards) ISO 639-2 & ISO 639-3 language code for Pashto.
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| SAP | • sap n. (Uncountable) The juice of plants of any kind, especially the ascending and descending juices or circulating… • sap n. (Uncountable) The sapwood, or alburnum, of a tree.
 • sap n. Any juice.
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| SIP | • sip n. A small mouthful of drink. • sip v. (Transitive) To drink slowly, small mouthfuls at a time.
 • sip v. (Intransitive) To drink a small quantity.
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| SOP | • sop n. Something entirely soaked. • sop n. A piece of solid food to be soaked in liquid food.
 • sop n. Something given or done to pacify or bribe.
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| SPA | • spa n. A health resort near a mineral spring or hot spring. • spa n. A trendy or fashionable resort.
 • spa n. A health club.
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| SPY | • spy n. A person who secretly watches and examines the actions of other individuals or organizations and gathers… • spy n. (American football) A defensive player assigned to cover an offensive backfield player man-to-man when…
 • spy v. (Intransitive) To act as a spy.
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| SUP | • sup v. To sip; to take a small amount of food or drink into the mouth, especially with a spoon. • sup n. A sip; a small amount of food or drink.
 • sup v. To take supper.
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| UPS | • ups n. Plural of up. • ups v. Third-person singular simple present indicative form of up.
 • ups interj. Misspelling of oops.
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