Select the most appropriate meaning of the given idiom.

Lie low

Try not to be noticed

The most appropriate meaning of the given idiom "lie low" is (4) Try not to be noticed.

The idiom "lie low" means to keep a low profile or to avoid being seen or heard. It is often used to describe someone who is trying to avoid attention, such as a celebrity who is trying to avoid the paparazzi.

The other options do not fit the meaning of the idiom.

• Sit on a low chair means to sit in a chair that is not very high.
• Lie down and relax after a tiring day means to rest in a horizontal position.
• Fly a plane at a low altitude means to fly a plane at a height that is close to the ground.