sub

1. Subaltern.

2. Subscription.

3. Subsidiary.

4. Suburb.

1. A substitute.

2. Informal See submarine.

3. Informal See submarine. See Regional Note at submarine.

1. To act as a substitute.

2. To read and edit as a copy editor .

1. To act as a substitute.

Here are some other words you could make with the letters sub, you can also
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Top Words by points	Points	Word Game
bus	5	Scrabble

2 Letters	Scrabble® Points
us	2

3 Letters	Scrabble® Points
bus	5
sub	5