mainobject
nounUK /ˌmeɪn ˈɒbdʒɪkt/
US /ˌmeɪn ˈɑːbdʒekt/
The main object is the most important thing you are looking at or thinking about.
In the picture, the main object is a big red apple.
OTHER MEANINGS
2. The most important goal or aim of a plan or action.
The main object of the game is to score more points than the other team.
3. The chief thing that a person is trying to achieve.
Her main object was to finish her homework before dinner.
4. The central item in a collection or display.
The main object in the museum is a giant dinosaur skeleton.