Unscramble Rsub

What is the meaning of word rsub unscrambled?

What 4 letter words can be made from letters R S U B:

1. burs - Definition of burs

2. rubs - Definition of rubs

3. urbs - Definition of urbs

Make more words by adding or removing letters

How many 3 letter words can you make from letters R S U B?

1. bur - Definition of bur

2. bus - Definition of bus

3. rub - Definition of rub

4. Rus - Definition of Rus

5. sub - Definition of sub

6. Sur - Definition of Sur

7. urb - Definition of urb

8. USB - Definition of USB

Which 3 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter R and unscrambling sub
2) Removing the letter S and unscrambling rub
3) Removing the letter U and unscrambling rsb
4) Removing the letter B and unscrambling rsu

More anagrams containing the letters R S U B
rubs rusb rsub rsbu