Synonym: bore, enter, perceive, perforate, pierce, puncture, see through, understand. Similar words: generate, strategy, arbitrate, prostrate, frustrate, strategic, illustrate, concentrate. Meaning: ['penɪtreɪt] 
v. 1. pass into or through, often by overcoming resistance 2. come to understand 3. become clear or enter one's consciousness or emotions 4. enter a group or organization in order to spy on the members 5. make one's way deeper into or through 6. insert the penis into the vagina or anus of 7. spread or diffuse through.
v. 1. pass into or through, often by overcoming resistance 2. come to understand 3. become clear or enter one's consciousness or emotions 4. enter a group or organization in order to spy on the members 5. make one's way deeper into or through 6. insert the penis into the vagina or anus of 7. spread or diffuse through. 
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1 Western ideas penetrate slowly through the East.
2 These fine particles penetrate deep into the lungs.
3 The cold seemed to penetrate his bones.
4 Amazingly, the bullet did not penetrate his brain.
5 The sun's rays can penetrate water up to 10 feet.
6 They are hoping to penetrate the Japanese market with their latest product.
7 I heard what he said, but it didn't penetrate.
8 Our eyes could not penetrate the darkness.
9 I heard what you said,(Sentencedict.com) but it didn't penetrate.
10 X-rays can penetrate many objects.
11 No one could penetrate the meaning of the inscription.
12 It was impossible to penetrate the mystery.
13 Were you able to penetrate the author's symbolism?
14 Science can penetrate many of nature's mysteries.
15 My eyes couldn't penetrate the gloom.
16 The nail will not penetrate.
17 She could penetrate what I was thinking.
18 The light could not penetrate through the thick curtains.
19 The spies managed to penetrate behind enemy lines.
20 It's hard to penetrate her mind.
21 The invading army could only penetrate the mountain barrier at one point.
22 Our eyes couldn't penetrate the dark/the gloom of the inner cave.
23 This year the company has been trying to penetrate new markets .
24 What could I say that would penetrate his thick skull ?
25 Her poetry attempts to penetrate the dark mystery of death.
26 Her voice doesn't penetrate.
27 This method of cooking also permits heat to penetrate evenly from both sides.
28 Their keen eyes can penetrate water to a depth of four meters.
29 A breach in the mountain wall permits warm sea air to penetrate inland.
30 I explained the problem to him several times but it didn't seem to penetrate.
More similar words: generate, strategy, arbitrate, prostrate, frustrate, strategic, illustrate, concentrate, demonstrate, strategically, concentrate on, extraterrestrial, genetic, frenetic, retract, betrayal, active transport, enervate, generation gap, compensate, rate, penultimate, compensate for, prate, frustration, operate, berate, registration, demonstrator, vibrate.