counter
general counter
1. general counter (1-9)
A native Japanese counter that can be used for various objects, especially when the specific counter is unknown. Only used for numbers 1-9.
(ひと)ください
Please give me one.
りんご(みっ)ください
Please give me three apples.
There are two problems.
There are four windows in the room.
There were eight sweets, but I gave five to the children. Three remained.

つ uses native Japanese numbers (not Chinese-derived): (ひと)つ, (ふた)つ, (みっ)つ, (よっ)つ, (いつ)つ, (むっ)つ, (なな)つ, (やっ)つ, (ここの)つ. For 10 and above, use (とお) (ten) or the Chinese-derived numbers with appropriate counters. This counter is very useful when you don't know the specific counter for something.