4 letter (change 1 letter)

[sienna20]

Knot

 

[Walks]

Tank

 

[Carollo]

Lank

 

[roger61]

Nail

 

[Carollo]

Sail

 

[slimguy666]

Rail

 

[Carollo]

Pail

 

[slimguy666]

Fail

 

[sienna20]

Loaf

 

[ThatoldTed]

Fool

 

[roger61]

Foal

 

[ThatoldTed]

Fall

 

[slimguy666]

Mall

 

[Carollo]

Mail

 

[ThatoldTed]

Rail

 

[Carollo]

Laid

 

[slimguy666]

Maid

 

[Walks]

Damn

 

[Daydreams]

Amid

 

[Walks]

Mild