What do the following words have in common?

1. LEFT

2. FAST

3. PEER

4. TRIM

5. DUST

6. SEED

 

Answer: 

 

They are all contronyms - words that have two opposite meanings: 

 

1. LEFT - went away 

                  who or what remains

 

2. FAST - moving quickly

                 held securely in place 

 

3. PEER - a person of nobility

                  an equal

 

4. TRIM - to cut away, as fat

                  to add to or decorate, as a Christmas tree

 

5. DUST - to clean up and get rid of dust

                  to sprinkle dust on

 

6. SEED - to spread/plant seeds

                  to remove seeds from, as a fruit or vegetable