to make a decision to do something or leave the option open for someone else

not yet decided

a very attractive offer

to understand a certain situation fully (the same as everyone else)

to refuse to back down from someone's position

to negotiate the terms of an agreement

a warning that there will be trouble ahead

to accept something that has happened (usually something bad)

something is available for someone else to use / do something with

(used as an ultimatum) to specify an absolute limit in a conflict

taking all factors into consideration

to negotiate effectively (I would say that this is when someone makes a negotiation that is mostly fair but when they have to give more than they were wanting)

To try to split a united group (or between 2 people) by introducing by introducing a topic in which they disagree on