4 letter (change 1 letter)

[Just-me]

hash

 

[TravellingBlue]

Sham

 

[Just-me]

Shag

 

[TravellingBlue]

Gosh

 

[Cazz]

Gash

 

[TravellingBlue]

Slag

 

[Just-me]

Glad

 

[TravellingBlue]

Gale

 

[Just-me]

Heal

 

[TravellingBlue]

Ache

 

[Just-me]

Cave

 

[TravellingBlue]

Wave

 

[Just-me]

Wake

 

[TravellingBlue]

Wank

 

[Just-me]

Swan

 

[TravellingBlue]

swam

 

[Just-me]

Warm

 

[TravellingBlue]

Mark

 

[Just-me]

Rams

 

[TravellingBlue]

Mast