negotiate

verb

• 1obtain or bring about by discussion:he negotiated a new contract with the sellers
• [no object] try to reach an agreement or compromise by discussion:they refused to negotiate with the rebels

• 2find a way over or through (an obstacle or difficult route):she cautiously negotiated the hairpin bend

• 3transfer (a cheque, bill, or other document) to the legal ownership of another person, who thus becomes entitled to any benefit.
• convert (a cheque) into cash or notes.