negotiationne·go·ti·a·tion /nɪˌgəʊʃiˈeɪʃən-ˌgoʊ-/ noun [countableC usually plural, uncountableU] official discussions between groups who are trying to reach an agreementThe company entered into negotiations for the purchase of a site just outside the town.
The terms of the contract are still open to negotiation (=can be discussed and changed).