How do you say this word turn?

How do you say turn left?

Well, you’re right. We Southerners have another word for “turn“, which is “quẹo”. So for “turn left” and “turn right“, we say “quẹo trái” and “quẹo phải”. The word “quẹo” is pronounced as [kweo] with the low heavy tone.

Is the T silent in exactly?

In practice, yes it is virtually silent unless one makes a special effort to pronounce it. When we have a consonant cluster here /ktl/ one sound is often not heard. The linguistice term for it is “dissimilation”.

How do you pronounce M and N?