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maintain
maintain someone in something
to keep or provide for someone in a certain style or condition. I insist that you maintain me in the style to which I have become accustomed. He had hoped to maintain himself in comfort.
maintain something at something
to keep something at a certain level, setting, degree, amount, etc. You must maintain the temperature at 30 degrees Celsius. We have to maintain the temperature at a very high level.
keep a low profile
also maintain a low profile to behave in a way that does not attract attention The local people are not always pleasant to strangers, who are warned to keep a low profile while visiting.
keep a low profile
to avoid attracting attention to yourself He's been keeping a low profile at work ever since his argument with Peter.
keep a low profile
Stay out of public notice, avoid attracting attention to oneself. For example, Until his appointment becomes official, Ted is keeping a low profile. This expression alludes to profile in the sense of "a visible contour," a usage dating from the 1600s. [Late 1900s]