ぴったり

ぴったり
adverb, na-adjective
exactly, perfectly
descriptive
1. exactly, precisely
Without any deviation.
ぴったり5時(じ)だ。
It's exactly 5 o'clock.
The answer matched exactly.
The budget was exactly 10,000 yen.
2. perfectly fitting
Matching exactly in size or suitability.
サイズがぴったりだ。
The size is a perfect fit.
This job is perfect for him.
I found clothes that fit perfectly.
3. tightly, closely
With no gap or space.
ぴったりくっつく。
To stick tightly.
窓(まど)をぴったり閉(し)めた。
I closed the window tightly.
I pressed my body tightly against the wall.

ぴったり is a mimetic word meaning exactly, perfectly, or tightly fitted.

Usage

1. Exactly: ぴったり5時(じ)に (at exactly 5 o'clock)
2. Perfect fit: サイズがぴったり (perfect size)
3. Tightly: ぴったりくっつく (to stick closely)

Common patterns

FORMS (adjective use):
ぴったりな/ぴったりの + noun: a perfect (fit)