Language interpreting or interpretation is the intellectual activity of facilitating oral an sign-language communication, either simultaneously or consecutively, between two or more users of different languages. Functionally, interpreting and interpretation are the descriptive words for the activity. In professional practice interpreting denotes the act of facilitating communication from one language form into its equivalent, or approximate equivalent, in another language form. Interpretation denotes the actual product of this work, that is, the message as thus rendered into speech, sign language, writing, non-manual signals, or other language form. This important distinction is observed to avoid confusion.