4 letter (change 1 letter)

[Just-me]

Spin

 

[Rocket44]

Sink

 

[Cazz]

Pink

 

[Just-me]

Punk

 

[Rocket44]

Bunk

 

[Just-me]

Buck

 

[Rocket44]

Suck

 

[Just-me]

Cues

 

[Rocket44]

Cusp

 

[Just-me]

Puss

 

[Rocket44]

Push

 

[Just-me]

Hush

 

[Rocket44]

Lush

 

[Cazz]

Lust

 

[Hobbity]

lost

 

[Snoopy05]

Lets

 

[Cazz]

Left

 

[Snoopy05]

Flat

 

[Cazz]

Flag

 

[Snoopy05]

Slag