信噪比
xìn​zào​bǐ

signal-to-noise ratio

信 xìn trust

Conveys trusting (信) what a person (人) says (言). 人 is also a sound component.

Components

亻
亻 SoundMeaning component
rén person

亻 is a component form of 人.

Change in sound
言
言 Meaning component
yán speech

Character Evolution

Bronze form
Bronze Late Western Zhou ~800 BC
Bronze form
Bronze Mid Warring States ~300 BC
Bronze form
Bronze Late Warring States ~250 BC
Bronze form
Bronze Late Warring States ~250 BC
Bronze form
Bronze Late Warring States ~250 BC
Bronze form
Bronze Late Warring States ~250 BC
Bronze form
Bronze Late Warring States ~250 BC
Seal form
Seal Warring States (Chu) 475-221 BC
Seal form
Seal Warring States (Chu) 475-221 BC
Seal form
Seal Western Han 202 BC-9 AD
Seal form
Seal Shuowen ~100 AD
Seal form
Seal Shuowen ~100 AD
Seal form
Seal Shuowen ~100 AD
Clerical form
Clerical Qin 221-206 BC
Clerical form
Clerical Western Han 202 BC-9 AD
Clerical form
Clerical Western Han 202 BC-9 AD
Clerical form
Clerical Western Han 202 BC-9 AD
Clerical form
Clerical Eastern Han 25-220 AD
Regular Modern

Historical Pronunciations

Middle ChineseOld ChineseGloss
Baxter-SagartsinHs-ni[ŋ]-s truthful

說文解字

《說文》：“信，誠也。从人，从言，會意。，古文从言省。訃，古文信。”

Sources

Character origin
漢語多功能字庫
Readings & variants
Unicode
Historical pronunciations
Baxter-Sagart
Historical images
Academia Sinica
Etymology
Shuowen Jiezi (說文解字)

噪 zào noise

Phonosemantic compound. 口 represents the meaning and 喿 represents the sound.

Components

口
口 Meaning component
kǒu, kou mouth
喿
喿 SoundMeaning component
zào, sào, qiāo chirping of birds

Historical Pronunciations

Middle ChineseOld ChineseGloss
Baxter-SagartsawHC.sˤaw-sshout
Zhengzhangsaːws
Unicodesɑ̀u

Sources

Character origin
漢語多功能字庫
Readings & variants
Unicode
Historical pronunciations
Baxter-SagartZhengzhang Shangfang

比 bǐ to compare

Two spoons side-by-side, conveying the meaning "to put together", "match", or "compare". 匕 also represents the sound.

Components

匕
匕 SoundIconic component
bǐ, pìn spoon, (person)

Depicts a spoon.

匕
匕 SoundIconic component
bǐ, pìn spoon, (person)

Depicts a spoon.


Character Evolution

Oracle form
Oracle Bone ~1250-1000 BC
Bronze form
Bronze Early Western Zhou ~1000 BC
Bronze form
Bronze Late Western Zhou ~800 BC
Bronze form
Bronze Late Western Zhou ~800 BC
Bronze form
Bronze Late Western Zhou ~800 BC
Seal form
Seal Warring States (Chu) 475-221 BC
Seal form
Seal Shuowen ~100 AD
Seal form
Seal Shuowen ~100 AD
Clerical form
Clerical Qin 221-206 BC
Clerical form
Clerical Qin 221-206 BC
Clerical form
Clerical Western Han 202 BC-9 AD
Clerical form
Clerical Eastern Han 25-220 AD
Clerical form
Clerical Eastern Han 25-220 AD
Clerical form
Clerical Eastern Han 25-220 AD
Regular Modern

Component uses

Sound (3 of 21 verified)

批毕屁毙庇毗琵砒蓖吡纰枇蚍妣秕貔舭芘仳坒紕

Meaning (0 of 2 verified)

毖坒

Historical Pronunciations

Middle ChineseOld ChineseGloss
Baxter-SagartpjijXC.pijʔ compare
pjijHpij-s combine; all

說文解字

《說文》：“比，密也。二人為从，反从為比。夶，古文比。”

Sources

Character origin
尤梓竹《甲骨文字考釋提要（一）》p.56李学勤《字源》p.725
Readings & variants
Unicode
Historical pronunciations
Baxter-Sagart
Historical images
Academia Sinica
Etymology
Shuowen Jiezi (說文解字)