1. th (voiced)

a. them /ðɛm/

 
 

b. mother /'mʌð ɚ/

 
 

c. smooth /smuð/

 
 

2. th (unvoiced)

a. think /θɪŋk/

 
 

b. method /'mɛθ əd/

 
 

c. bath /bæθ/

 
 

More 'voiced and unvoiced th' material