new – sin

Written as xīn or xin

To remember that new is pronounced sin (xin) in Mandarin Chinese, use the following mnemonic:

With the new car she wouldn't be single (sin) for much longer. 

Tones

Sin (single) is a 1st tone with — as an accent.

Associate single, a 1st tone, with a string or tie or tying or knot. See Tones and Mnemonics.

He was single because all he wore was string.

Remember

Sin = 1st  tone =  —