parenthesize

UK: /pəˈrɛnθɪˌsaɪz/ US: (pə ren′thə sīz′)

Inflections of 'parenthesize' (v): (⇒ conjugate)

parenthesizes

v 3rd person singular (US & UK)

parenthesizing

v pres p (US & UK)

parenthesized

v past (US & UK)

parenthesized

v past p (US & UK)

WordReference Random House Unabridged Dictionary of American English © 2026

pa•ren•the•size  (pə ren′thə sīz′), v.t., -sized, -siz•ing. 

1. Grammar to insert (a word, phrase, etc.) as a parenthesis.
2. to put between marks of parenthesis:
   to parenthesize the pronunciation of a word.
3. to interlard with parenthetic remarks, as a speech.

Also,[esp. Brit.,] pa•ren′the•sise′. 

• parenthes(is) + -ize 1830–40

Collins Concise English Dictionary © HarperCollins Publishers::

parenthesize, parenthesise / pəˈrɛnθɪˌsaɪz/ verb (transitive)

1. to place in parentheses
2. to insert as a parenthesis
3. to intersperse (a speech, writing, etc) with parentheses