四声

Traditional form:

四聲

Pinyin (reading):

sìshēng

Definitions:

• the four tones of Middle Chinese: level tone 平聲／平声, rising tone 上聲／上声, departing tone 去聲／去声 and entering tone 入聲／入声
• the four tones of Modern Standard Mandarin

Characters:

• 四 - four
• 声 - sound, noise; voice, tone, music

Traditional characters:

• 四 - four
• 聲 - sound, noise; voice, tone, music