Six-letter words - change zero to two letters make a new word (Part 1)

[aceplace57]

manure

[Biffster]

mature

[chiliwillybing]

marker

[Cardigan]

creams

[chiliwillybing]

scream

[aceplace57]

smears

[chiliwillybing]

remark

[rippingtons_fan]

marked

[Ignatz]

racket

[chiliwillybing]

basket

[Prof.Pepperwinkle]

batter

[Ignatz]

hitter

[chiliwillybing]

wither

[aceplace57]

bother

[chiliwillybing]

theory

[burpo_the_wonder_mutt]

youths

(pronounced, “yutes”)

[chiliwillybing]

mouthy

[burpo_the_wonder_mutt]

rhythm

[aceplace57]

theory

[chiliwillybing]

thorny