- 一字千金 yīzìqiānjīn one word worth a thousand in gold(idiom) a single word is worth a thousand pieces of gold; describes a piece of writing or calligraphy that is highly valued for its perfection, beauty, or precision
- 一字不识 yīzìbùshí completely illiteratenot knowing even a single character; totally illiterate
- 一字儿 yīzìr in a linespread out in a row; in a straight line
- 一字长蛇阵 yīzìchángshézhèn single-line battle arrayA military formation where troops are strung out in a single horizontal line; also used to describe people or vehicles forming a very long queue.
- 一字一板 yīzìyībǎn clearly and deliberatelyTo speak slowly and clearly with every word or sound distinct.
- 一字一泪 yīzìyīlèi each word is a teardropdescribing written work that is extremely moving and full of pathos or written with great sorrow
- 一字一珠 yīzìyīzhū sweet and mellowused to describe a voice that is sweet, mellow, or beautifully rounded; often used for singing
- 一字之师 yīzìzhīshī one-word teachera person who earns respect as a teacher by correcting a single character in one's writing; a teacher for a single word
- 一字褒贬 yīzìbāobiǎn concise and powerful wordingTo praise or criticize with a single word; used to describe a strict and deliberate choice of words in writing or criticism.
- 一字马 yīzìmǎ the splitsthe splits, as performed in gymnastics, dance, or martial arts
- 不识一字 bùshíyīzì completely illiteratenot knowing a single character; unable to read or write
- 一字不差 yīzìbùchà word for wordnot a single word is wrong; verbatim; without a single mistake or omission
- 一字不提 yīzìbùtí to not breathe a single wordto not mention a single word about something; to keep completely silent about a matter
- 一字不漏 yízìbúlòu word for wordWithout missing a single word, as in copying or reading a text.
- 一字不落 yīzìbùlà without missing a wordword for word; without omitting a single character
- 一字巾 yīzìjīn headbandheadband; a strip of cloth worn around the head
- 一字师 yīzìshī one-word teacherSomeone who improves a piece of writing by correcting or changing a single character.
- 一字眉 yīzìméi straight eyebrowseyebrows shaped in a horizontal line resembling the character [[一|一|yi1]], including a specific makeup style popular in the Yuan Dynasty; sometimes also used to refer to a unibrow
- 一字纵队 yīzìzòngduì single filea line of people or things arranged one behind another; single-file column