How to Say W-R-I-S-T

We spell this word wrist W-R-I-S-T. But when we say it, we don't pronounce the first letter W-R. Instead, we start the sound from the second letter in the word, which is the letter R,. The word was no, meaning to recognise and understand something. It's spelled K-N-O-W but we don't say the letter K. So that's another rule. We don't usually say the K in words that begin with K-N. For example, knee, the joint between your upper and lower leg; knife, the tool we use to cut things.