1.  Prefix  Definition: in front, against, in the way of

2.  Adjective  No longer in use, out of date

3.  Adjective  Definition: not clearly seen, vague

4.  Prefix  Definition: with, together

5.  Adjective  Friendly, social, enjoy partying

6.  Prefix  Definition: again, back

7.  Verb  Definition: to find a solution, to settle an argument  Other forms: resolution

8.  Noun  Definition: an attempt to disprove or contradict an argument

9. Prefix Definition: apart

10.  Verb  Definition: to come to know or recognize

11.  Verb  Definition: to speak or write about something that is not on the topic

12.  Verb  Definition: to mark or show a difference

13.  Prefix  Definition: against

14.  Noun  Definition: a substance added to a liquid to prevent it from freezing

15.  Noun  Definition: a word that means the opposite of another word

16.  Prefix  Definition: between, among

17.  Adjective  Definition: occurring between stars

18.  Adjective  Definition: occurring between nations

19.  Prefix  Definition: two

20.  Adjective  Definition: able to speak two language

21.  Adjective or Noun  Definition: eye glasses divided into two parts