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一 — one; single; a

one; single; a; as soon as; entire; whole; all; throughout

Pinyin
yī
Strokes
1
HSK level
HSK 1
Handwriting
required

How to write 一: 1 stroke

Each cell adds one stroke to the previous ones, with the new stroke in red. Stroke order is not decoration: it sets the proportions of the character and makes handwriting legible to a reader. This character is on the HSK handwriting list, so the exam expects you to write it, not only recognise it.

一 — 1 stroke, in writing order from left to right.

Build a printable practice sheet with 一

Words with 一 in the HSK syllabus: 105

Every word in the official 2026 syllabus that contains this character, with the level it is introduced at. Learning a character pays off through these: each one combines with the characters you already know.

  1. 一yīone; single; a; as soon asHSK 1
  2. 一半yíbànhalfHSK 1
  3. 一下yíxiàa bit; a little; all at once; suddenlyHSK 1
  4. 一点儿yìdiǎnr—HSK 1
  5. 一些yìxiēsome; a few; a little; slightly ...erHSK 1
  6. 一会儿yíhuìra moment; a while; in a moment; now...now...HSK 2
  7. 一起yìqǐthe same place; together; in companyHSK 2
  8. 一定yídìngsurely; certainly; definitely; fixed; settledHSK 3
  9. 一共yígòngin total; altogetherHSK 3
  10. 一块儿yíkuàir—HSK 3
  11. 一样yíyàngsame; like; equal to; the same as; just likeHSK 3
  12. 一般yìbānsame; ordinary; so-so; common; general; generallyHSK 3
  13. 一边yìbiānone side; either side; on the one handHSK 3
  14. 一直yìzhístraight; continuously; always; all the way throughHSK 3
  15. 一切yíqièeverything; every; allHSK 4
  16. 一生yìshēngall one's life; throughout one's lifeHSK 4
  17. 单一dānyīsingle; only; soleHSK 5
  18. 进一步jìnyíbùto go a step further; more; furtherHSK 5
  19. 同一tóngyīidentical; the sameHSK 5
  20. 统一tǒngyīto unify; to integrate; unified; integratedHSK 5
  21. 万一wànyījust in case; if by any chance; contingencyHSK 5
  22. 唯一wéiyīonly; soleHSK 5
  23. 一次性yícìxìngone-off; one-time; single-use; disposableHSK 5
  24. 一代yídàian era; an age; a generationHSK 5
  25. 一旦yídànin case; if; once; when; in a short time; in one dayHSK 5
  26. 一路yílùthe whole journey; all the way; going the same wayHSK 5
  27. 一路顺风yílù-shùnfēngto have a pleasant journeyHSK 5
  28. 一致yízhìconsistent; unanimous; in agreementHSK 5
  29. 大吃一惊dàchī-yìjīngastounded; flabbergasted; taken abackHSK 6
  30. 一流yīliútop quality; front rankingHSK 6
  31. 一一yīyīone by one; one after anotherHSK 6
  32. 一辈子yíbèizia lifetimeHSK 6
  33. 一带yídàiregion; areaHSK 6
  34. 一道yídàotogetherHSK 6
  35. 一贯yíguànconsistent; constant; from start to finishHSK 6
  36. 一律yílǜsame; identical; uniformly; all; without exceptionHSK 6
  37. 一向yíxiànga period of time in the recent pastHSK 6
  38. 一系列yíxìlièa series of; a string ofHSK 6
  39. 一再yízàirepeatedlyHSK 6
  40. 一阵yízhèna burst; a fit; a peal; a spellHSK 6

And 65 more across the higher levels — the full lists are on the level pages.

Glosses come from CC-CEDICT, used under CC BY-SA 4.0, and are the dictionary’s first sense rather than a translation chosen for context.