Englishfor English speakers
maintain
Verb
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If you maintain something, you keep it at the same level.
Who's more likely to maintain the status quo?
UN forces will be used to help maintain stability in the area after the war.
It's so important to maintain balance in all areas of your life.
Vitamin B12 helps maintain healthy red blood cells in the body.
Cook, maintaining a temperature of 350 degrees for 12 minutes.
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If you maintain something, you say or write that it's a fact.
Ford maintains the cars are safe.
They have all hired lawyers and all three maintain their innocence.
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If you maintain a machine, you keep it working well and fix it when it breaks.
There was lots of money to buy the machines, but no money was available to maintain them.
contact
Noun
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When mathx/math makes or has contact with mathy/math, they touch each other physically.
The trains in Tokyo are so crowded that everyone has to stand in close contact to everyone else.
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By extension, its use as a metaphor:
He wore dark glasses so that he wouldn't have to make eye contact with anyone.
"Did you tell Chris about lunch today?" "No, I wasn't able to get in contact with him."
contact
Verb
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If A contacts B, A telephones B or writes a letter or e-mail to B.
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