一定 (yīdìng) · certainly
一定 (yīdìng) means “certainly; definitely; must”. It is written with 2 characters: 一 (one) + 定 (to decide). It is an HSK 3 word in the current exam syllabus (2025).
How 一定 is built
The characters
一 yī · one
What 一 is made of
一 is not built from smaller parts; it is written with 1 strokes.
Origin hint: Represents heaven (天), earth (旦), or the number 1 (from the Make Me a Hanzi dataset; treat as a memory aid where history is uncertain)
定 dìng · to decide
What 定 is made of
- 宀 — roof
- 丶 — dot
- 冖mì — cover
- 疋pǐ — foot shape
Origin hint: A person 疋 settling under a roof 宀 (from the Make Me a Hanzi dataset; treat as a memory aid where history is uncertain)
Example sentences
Questions about 一定
What does 一定 mean?
一定 (yīdìng) means “certainly; definitely; must”.
How do you pronounce 一定?
一定 is pronounced yīdìng.
Which HSK level is 一定?
一定 is in HSK 3 (exam 2025) and HSK 2 (2021) and Old HSK 3.
Related words
- 一半yībànhalf
- 一会儿yīhuìra moment
- 一块儿yīkuàirtogether
- 一下儿yīxiàra little while
- 一样yīyàngsame
- 一边yībiānone side
- 一点儿yīdiǎnra little
- 一起yīqǐtogether
- 一些yīxiēsome
- 不一定bùyīdìngnot necessarily
It is part of HSK 2 (2021) · Group 23: a short group with quick checks and spaced repeats.