Liaise (verb)

1. To establish and maintain communication and cooperation between groups, organizations, or people.
2. To work together and cooperate closely with someone in order to achieve a particular goal.

Origin:

From french liaiser "to link, unite".

Examples:

1. The manager was responsible for liaising with other departments to ensure that the project was completed on time.
2. The company's representative will liaise with the government officials to resolve the issue.
3. The event organizer will liaise with the local authorities to ensure that all necessary permits are obtained.
4. The teacher will liaise with the parents to ensure that the student's needs are met.
5. The two companies decided to liaise in order to develop a new product together.