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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91 One of the few notions from game theory to penetrate the popular culture was the distinction of zero-sum and nonzero-sum games.
92 National Public Radio is singularly effective in promoting a national culture nationwide, reaching where no other institutions penetrate.
93 Position your head over the bowl and cover your head and the bowl with a towel to allow the steam to penetrate.
94 Penetrate inside - stay awhile with guidebook raised - and you will find something calmly neoclassical, something wisely proportioned and cool.
95 The Magellan radar-mapping mission was designed to penetrate the dense cloud layer and return detailed radar images of the surface geology.
96 The Laboulbeniales are ectoparasites - most of their tissue remains outside the host - and only superficially penetrate into the host.
97 Some are deflected by the ozone layer, but others penetrate to ground level.
98 Nothing Sylvie said seemed to penetrate her loyalty to that daughter who wasn't hers.
99 Cut two diagonal slashes on each side to allow heat to penetrate.
100 The wind was cutting across the open space at great speed, so cold it seemed to penetrate his bones.
101 The F-111s are ageing and their credibility as a deterrent depends upon their ability to penetrate increasingly sophisticated Soviet air defences.
102 She had complete confidence in the young nurse, although she found it very difficult to penetrate her reserve.
103 By some lucky balance of nature, the Alpha rays, although deadly, can not penetrate matter readily.
104 Occasionally he would ask me a question but the answer seemed not to penetrate very far.
105 To gain access to her he has to penetrate many layers of permeability.
106 If it ends up in a bark crevice, the seed may germinate and penetrate the tree.
107 One had failed to penetrate airport security at Budapest(http://Sentencedict.com), got himself arrested and deported.
108 The result is an excluded volume behind the target atom into which no ions penetrate.
109 If it is plastic it will penetrate the surface, but be careful not to go right through.
110 I have tried ever since, through writing, to penetrate my own layers of protective skin.
111 No jury will convict either Clinton unless the case Starr erects is so tight that no speck of doubt can penetrate it.
112 Nothing seemed to penetrate Violet's consciousness as she waited for the fight to start.
113 He found a place where a few trees grew so thick and close to the ground, no moisture could penetrate them.
114 What is less well-known is that rather similar effects may happen with a blow on the forehead which does not penetrate.
115 Why have they failed to spectacularly to penetrate the mainstream?
116 Any kind of ranching, logging or building provides a ready-made inroad for the farmers to penetrate the most inaccessible parts.
117 The sun's rays can penetrate the sea to a depth of twenty metres.
118 Prune the tops so that light can penetrate to the bottom of the shrubs, which will stimulate new growth.
119 The weak, fast-moving, easily ablated comets do not penetrate the atmosphere very deeply.
120 The paramilitary organisations, on either side of the political divide, remain active and hard 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.