Office 365 Addin

[chrissimon-au]

Describe the solution you'd like
An Office 365 add-in that provides similar functionality to what Contextive does in an IDE (hover tooltip, autocomplete, from custom term definitions, with context-aware selection of the term/definition).

Describe alternatives you've considered
A generic browser extension, rather than an office-specific add-in.

Additional context
Need to research if there is anything a generic extension can't do that an office add-in would be required to do.

Relevant documentation:

https://github.com/OfficeDev/office-js
https://learn.microsoft.com/en-gb/javascript/api/overview?view=common-js-preview
https://learn.microsoft.com/en-gb/office/dev/add-ins/