Coworker and Co-ordinate

Coworker noun - A fellow worker.

Co-ordinate and coworker are semantically related In some cases you can replace phrase "Co-ordinate" with "Coworker", this terms are similar.

Co-ordinate noun - A number that identifies a position relative to an axis.

Coworker and co-ordinate are semantically related in friend topic. Sometimes you can use "Coworker" instead a noun phrase "Co-ordinate", if it concerns topics such as partner.