4 letter (change 1 letter)

[LinusVP]

Help

 

[Cazz]

Helm

 

[LinusVP]

Melt

 

[Cazz]

Felt

 

[LinusVP]

Flat

 

[Cazz]

Flaw

 

[Just-me]

Wolf

 

[London64]

Foul

 

[LinusVP]

Gulf

 

[Starbuck]

Gull

 

[LinusVP]

Bull

 

[Cazz]

Bell

 

[London64]

Lube

 

[Tufty41fUK]

Mule

 

[TashO75]

Lime

 

[Just-me]

Like

 

[Tufty41fUK]

Lick

 

[Just-me]

Dick

 

[LinusVP]

Duck

 

[London64]

Luck