E (named e /ˈiː/, plural ees)

1.  Is the fifth letter and the second vowel in the modern English alphabet and the ISO basic Latin alphabet. It is the most popular letter in many languages.

2. Also the first letter of my name.

col·lab·o·ra·tive play \-ˈla-bə-ˌrā-tiv, -b(ə-)rə-\  adjective or noun

1. The act of working jointly with others or together,  especially in an intellectual or creative endeavor to achieve a common solution.

2. To cooperate with an agency or instrumentality with which one is not immediately connected to achieve a common solution of a charitable nature.