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Definitions

penetrate

[pen-i-treyt] / ˈpɛn ɪˌtreɪt /
VERB
pierce; get through physically
Synonyms
STRONGEST
crack drill enter go through infiltrate invade pass through permeate pervade puncture seep
STRONG
access bayonet bore charge come diffuse drive encroach force gore impale insert insinuate introduce jab knife percolate perforate prick probe ream saturate spear stab suffuse thrust trespass
WEAK
barge in blow in break in breeze in bust in eat through filter in get in ingress make a hole make an entrance pop in run into sink into stick into
Antonyms
STRONGEST
surrender yield
STRONG
retreat
WEAK
exit misconstrue misinterpret misunderstand take out withdraw
VERB
understand or be understood
Synonyms
STRONGEST
affect fathom get through touch
STRONG
comprehend decipher discern grasp impress perceive unravel
WEAK
become clear come across figure out get across get over get to the bottom put over see through sink in soak in work out
Antonyms
STRONG
misinterpret misunderstand neglect overlook
WEAK
exit misconstrue take out withdraw

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Like sunlight, the lamps emit two different types of ultraviolet wavelengths: UVA, which are longer and penetrate more deeply into the skin, and UVB, which are shorter and more easily burn the outer layers.

From Los Angeles Times • May 6, 2026

Prof Jeffery, the UCL neuroscientist, says his studies show that near-infrared light can penetrate right through the body - so the light could reach deeper tissues.

From BBC • May 2, 2026

This new style, however, didn’t penetrate far beyond the ports of the East Coast.

From The Wall Street Journal • Apr. 26, 2026

The $700 area proved too tough to penetrate after three consecutive doji candles from Jan. 21 to Jan. 23.

From Barron's • Apr. 22, 2026

The music was loud enough for the Vanderbeekers to hear from the roof but quiet enough not to penetrate the Beiderman’s soundproof windows.

From "The Vanderbeekers of 141st Street" by Karina Yan Glaser

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