This is the 1369th most frequent Japanese word.
ヤツ
"ヤツ" (yatsu) is an informal term meaning "guy," "fellow," or "thing," often used casually or derogatorily.
Here, 'やつ' (yatsu) is used to refer to a person, implying a sense of familiarity or casualness.
あいつは本当におかしなやつだ。
That guy is really a strange one.
In this sentence, 'やつ' refers to an object, showing its informal usage to denote a tangible item.
このやつ、机の上に置いておいてくれる？
Can you leave this thing on the desk for me?
Here, 'やつ' signifies 'the new one,' referring to something previously contextually known, like a product or item.