exhibition是exhibit的名词形式，exhibition意为“展览，展览会”；而exhibit就是动词“展览”，同义词主要有display和show。
exhibit是动词，而exhibition是名词。
They will be exhibiting their new designs at the trade fairs.
他们将在商品交易会上展出他们新的设计。
an exhibition of old photographs
老照片展
作为名词
exhibit和exhibition都可以指“展览品”，但是exhibit多用于美式英语。
Have you seen the Picasso exhibition?你看过毕加索的画展吗？
The new exhibit will tour a dozen US cities next year. 这批新展品明年将在美国十二个城市巡回展出。
表示“（技能、感情、行为等的）表现，显示，表演 ”要用exhibition
We were treated to an exhibition of the footballer's speed and skill.
足球运动员表现出的速度和技能真是让我们大饱眼福。
表示“（在法庭上出示的）物证，证据 ”，用exhibit
The first exhibit was a knife which the prosecution claimed was the murder weapon.
当庭出示的第一件物证就是控方称为杀人凶器的一把刀。
