| 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). |
| OPS | • ops n. Plural of op. • ops n. (Informal) operations. • ops n. (Internet, IRC) operator status. |
| PAS | • pas n. (Now rare) The right of going foremost; precedence. • pas n. A step in a dance. • pas n. Plural of pa. |
| PES | • pes n. The foot of a human. • pes n. The hoof of a quadruped. • pes n. Clubfoot or talipes. |
| PIS | • pis n. Plural of pi. • PIs n. Plural of PI. • PI v. to mix type indiscriminately. |
| POS | • pos adj. (UK, slang) Clipping of positive. • pos adj. (Slang) Clipping of HIV positive. • pos n. Plural of po. |
| 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). |
| PST | • pst interj. Alternative form of psst. • PST n. Initialism of Pacific Standard Time. • PST n. Initialism of Palestinian Standard Time. |
| 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. |
| 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. |
| 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. |
| 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. |
| 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. |
| 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. |
| 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. |
| UPS | • ups n. Plural of up. • ups v. Third-person singular simple present indicative form of up. • ups interj. Misspelling of oops. |