4 letter (change 1 letter)

[LinusVP]

Runt

 

[Stiffernow]

Punt

 

[Thermo78]

Hunt

 

[Walks]

Then

 

[LinusVP]

Tent

 

[Walks]

Nest

 

[Just-me]

East

 

[Thermo78]

West

 

[Just-me]

Lets

 

[Thermo78]

Test

 

[Just-me]

Best

 

[Thermo78]

Bits

 

[Just-me]

Tits

 

[Thermo78]

Slit

 

[Just-me]

Slut

 

[Thermo78]

Slot

 

[Just-me]

Tool

 

[Thermo78]

Cool

 

[Just-me]

Loop

 

[Thermo78]

Look