tense / tents are similar-sounding terms with different meanings (referred to as homophones). To better understand the differences, see below for definitions, pronunciation guides, and example sentences using each term. 👇
tense: (noun) a grammatical category of verbs used to express distinctions of time. (verb) increase the tension on. (verb) become tense, nervous, or uneasy. (verb) cause to be tense and uneasy or nervous or anxious. (adjective) in or of a state of physical or nervous tension. (adjective) pronounced with relatively tense tongue muscles (e.g., the vowel sound in `beat'). (adjective) taut or rigid; stretched tight.
tents: (noun) a portable shelter (usually of canvas stretched over supporting poles and fastened to the ground with ropes and pegs). (noun) a web that resembles a tent or carpet.
tense: t·EH·n·s
tents: t·EH·n·t·s
(Examples are Wikipedia snippets under the CC ShareAlike 3.0 license. Definitions drawn from WordNet.)