HSK 5 HSK V4
Correct

字母

/ zìmǔ / 
Strokes

Definition

letter (of the alphabet)

Example

As a Noun
letters of an alphabet; letter
1
Yīngyǔ
英语
zìmǔ
字母

English alphabet

2
Hànyǔpīnyīn
汉语拼音
zìmǔ
字母

Chinese phonetic alphabet

3
Dà
大
  
/
xiǎoxiě
小写
zìmǔ
字母

capital/small letter

4
Àn
按
zìmǔ
字母
shùnxù
顺序
páiliè
排列

be arranged in alphabetical order; be arranged alphabetically

As a Noun
(in phonology) character representing an initial consonant（声母）