名詞 aching:

1. a dull persistent (usually moderately intense) pain
   同義詞：ache

動詞 ache:

1. feel physical pain
   同義詞：hurt, ache, suffer
2. have a desire for something or someone who is not present
   同義詞：ache, yearn, yen, pine, languish
3. be the source of pain
   同義詞：ache, smart, hurt

形容詞 aching:

1. causing a dull and steady pain
   同義詞：achy

1. He was aching for home/to go home.
   他渴望回家。
2. He felt an aching feeling in (the pit of) his stomach.
   他胃疼。
3. I'm aching all over.
   我渾身疼痛。
4. My head aches/is aching.
   我頭痛。
5. I'm aching all over after the match.
   比賽後我渾身疼痛。

ach.ing

adj.（形容詞）
Dully painful.
隱隱作痛的
Full of painful yearning or sorrow:
望眼欲穿的，悲痛的：充滿令人痛苦的渴望或悲傷的：
例句：
an aching heart.
破碎的心

【引伸】
ach.ingly
adv.（副詞）