物体 (wùtǐ) means "object" or "physical body." It is a general term for any tangible thing or material entity, commonly used in scientific and everyday contexts.
这个物体的重量大约是三公斤。
Zhège wùtǐ de zhòngliàng dàyuē shì sān gōngjīn.
The weight of this object is approximately three kilograms.
科学家正在研究一种不明物体。
Kēxuéjiā zhèngzài yánjiū yī zhǒng bùmíng wùtǐ.
Scientists are studying an unidentified object.
水中的物体看起来比实际的要大一些。
Shuǐ zhōng de wùtǐ kàn qǐlái bǐ shíjì de yào dà yīxiē.
Objects in water appear somewhat larger than they actually are.