chair
The word 'sedia' is used to refer to a chair in Italian. This noun can be used just as the word chair is used in English, referring to a piece of furniture designed for one person to sit on, with a back, a seat, and typically four legs.
The chair is brown
This is a simple sentence indicating the color of a particular chair, which is brown in this case.
I need a new chair for my office
This context could be used by someone who is expressing the necessity of a new chair for their office, probably because their old one is broken or uncomfortable.
I sit on the chair in front of the fireplace
This sentence is used by a person who is describing their action of sitting down on a chair, specifically mentioning the location as being in front of a fireplace. This sentence could be often heard during winter times.