Invalid.
To dream of invalids, is a sign of displeasing companions interfering with your interest. To think you are one, portends you are threatened with displeasing circumstances.
Invective.
To dream of using invectives, warns you of passionate outbursts of anger, which may estrange you from close companions.
To hear others using them, enemies are closing you in to apparent wrong and deceits.
Inventor.
To dream of an inventor, foretells you will soon achieve some unique work which will add honor to your name. To dream that you are inventing something, or feel interested in some invention, denotes you will aspire to fortune and will be successful in your designs.
Invite.
To dream that you invite persons to visit you, denotes that some unpleasant event is near, and will cause worry and excitement in your otherwise pleasant surroundings.
If you are invited to make a visit, you will receive sad news.