Which of the following words is closest in meaning to “Squelch”?

Squelch means to crush or silence.

• Correct answer - repress or silence: it has the same meaning as Squelch.
• to inform on: to betray someone to authority - wrong, it does not mean the same as Squelch.
• swoop down upon: to attack suddenly from above - wrong, it does not mean the same as Squelch.
• give a high-pitched sound: to make a shrill noise - wrong, it does not mean the same as Squelch.