DuckCorp Dico

Found one definition

1.                 From en.wiktionary.org:
                   
   
   
                   
                     
   
   ** English
   
   *** Etymology
   From [en].
   
   *** Verb
   [en-verb]
   
    1. [en]  To become tense  or more tense .
    2. * [en]
    3. * [en]
    4. * [en]
   **** Derived terms
   
    - [en]
   *** Anagrams
   
    - [en]
   ** Japanese
   
   *** Romanization
   [ja-romaji]
   
    1. [てんせん]
   ** Spanish
   
   *** Verb
   [es]
   
    1. [tensar]