1. argument, argumentation, debate

a discussion in which reasons are advanced for and against some proposition or proposal

Example Sentences:
'the argument over foreign aid goes on and on'

• argument
• argumentation

2. debate, disputation, public debate

the formal presentation of a stated proposition and the opposition to it (usually followed by a vote)

• disputation
• public debate

3. debate

argue with one another

Example Sentences:
'We debated the question of abortion'
'John debated Mary'

4. consider, debate, deliberate, moot, turn over

think about carefully; weigh

Example Sentences:
'They considered the possibility of a strike'
'Turn the proposal over in your mind'

• consider
• deliberate
• moot
• turn over

5. debate, deliberate

discuss the pros and cons of an issue

• deliberate

6. argue, contend, debate, fence

have an argument about something

• argue
• contend
• fence