4 letter (change 1 letter)

[LinusVP]

Tank

 

[Just-me]

Knit

 

[LinusVP]

Knot

 

[Just-me]

Conk

 

[LinusVP]

Rock

 

[Just-me]

Corn

 

[LinusVP]

Porn

 

[Just-me]

Prom

 

[Cazz]

More

 

[Thermo78]

Romp

 

[ScottishFunSeeker]

Rope

 

[Just-me]

Dope

 

[LinusVP]

Poem

 

[Just-me]

Mops

 

[Thermo78]

Spam

 

[Just-me]

Slap

 

[Thermo78]

Lass

 

[Just-me]

Pass

 

[Thermo78]

Puss

 

[Just-me]

Spur