What is the meaning of the word "agree"?

Definitions:

to achieve harmony of opinion, feeling, or purpose verb
- None of my colleagues would agree on whom to elect chairman.
to be agreeable or suitable verb
- White wine doesn't agree with me.
to be compatible, similar or consistent verb
- They really agree with us.
to be in accord verb
- We agree on the fundamental issues.
to consent or assent to a condition, or agree to do something verb
- They agreed to all my conditions.
to go together verb
- The subject and the verb in this sentence do not agree.
to show grammatical agreement verb
- Subjects and verbs must always agree in English.