| EXCITANTS | • excitants n. Plural of excitant. • EXCITANT n. a stimulant. |
| EXISTENTS | • existents n. Plural of existent. • EXISTENT n. something that exists. |
| EXTENSITY | • extensity n. (Uncountable) The state of being extensive or of having extension. • extensity n. (Countable) The degree to which something is extensive. • EXTENSITY n. massiveness or spatial quality in sensation from which perception of extension is derived. |
| EXTERNATS | • externats n. Plural of externat. • EXTERNAT n. (French) a day-school. |
| EXTRANETS | • extranets n. Plural of extranet. • EXTRANET n. a type of network like the internet. |
| SEXTANTAL | • sextantal adj. (Geometry) Of or relating to a sextant. • SEXTANTAL adj. relating to a sextant. |
| SIXTEENTH | • sixteenth adj. The ordinal form of the number sixteen. • sixteenth n. One of sixteen equal parts of a whole. • SIXTEENTH adj. number sixteen in sequence. |
| SPINTEXTS | • spintexts n. Plural of spintext. • SPINTEXT n. a clergyman, a long-winded preacher. |
| TAXATIONS | • taxations n. Plural of taxation. • TAXATION n. the process of taxing. |
| TETRAXONS | • tetraxons n. Plural of tetraxon. • TETRAXON n. a sponge spicule, also TETRACT. |
| TEXTONYMS | • textonyms n. Plural of textonym. • TEXTONYM n. one of several words that may be keyed into a mobile phone by pressing the same sequence of buttons. |
| TOXICANTS | • toxicants n. Plural of toxicant. • TOXICANT n. a poisonous substance. |
| TRANSFIXT | • transfixt v. Obsolete spelling of transfixed; simple past tense and past participle of transfix. • TRANSFIX v. to impale. |
| XANTHATES | • xanthates n. Plural of xanthate. • XANTHATE n. a salt of xanthic acid. |