The Chinese word for sharpener is
卷笔刀

juàn bǐ dāo

sharpener

Chinese Definition

Components
卷
1. Alternative form of 捲 (to roll up; to roll)
2. Alternative form of 捲 (to sweep up; to carry along; to sweep away)
3. Alternative form of 捲 (to embroil; to involve)
4. Alternative form of 捲 (roll; cylinder; tube; scroll)
5. (neologism, slang) Short for 內卷, intense competition among peers; to study harder or work longer as a result
6. reel of books
7. book; scroll
8. volume; chapter; fascicle
9. (computing) volume (attention, zh, is this definition under the right pronunciation?)
新-加卷juàn - new volume
10. examination paper
11. Alternative form of 婘 (fine; good)
12. Variant of 券
笔
1. Variant of 筆
刀
1. knife; blade
2. single-edged sword; cutlass
3. (neologism, internet) to bargain; to negotiate on price
4. (q-lite, only common among Tai people)
^刀 ^世-勛 - Dao Shixun
5. (Mandarin, neologism, colloquial) dollar
6. Variant of 刁