1. junk

noun. ['ˈdʒʌŋk'] the remains of something that has been destroyed or broken up.

Rhymes with Junk Dna

2. junk

verb. ['ˈdʒʌŋk'] dispose of (something useless or old).

3. junk

noun. ['ˈdʒʌŋk'] any of various Chinese boats with a high poop and lugsails.

4. DNA

noun. (biochemistry) a long linear polymer found in the nucleus of a cell and formed from nucleotides and shaped like a double helix; associated with the transmission of genetic information.