11 Old HSK word(s): ☊笔 ** A ☊钢笔 ** A ☊铅笔 ** A ☊笔记 ** B ☊粉笔 ** B ☊圆珠笔 ** B ☊笔试 ** C ☊毛笔 ** C ☊亲笔 ** D ☊笔迹 ** D ☊笔直 ** D
罢笔* * 败笔* * 代笔* * 动笔* * 伏笔* * 工笔* * 画笔* * 绝笔* * 蜡笔* * 落笔* * 眉笔* * 手笔* * 随笔* * 文笔* * 下笔* * 荧光笔* * 执笔* * 着笔* *

Definitions from Unihan Copyright © 1991-2015 Unicode® Inc. All rights reserved.

着 make move, take action
笔 writing brush / write / stroke

Hsk Characters: 笔 *
HSK -Characters and beyond:
GbBig5EngRadMegaTripleMultilingual
笔 7B14 + 筆 + + writing brush / write / stroke 竹 笔 Bamboo 笔 (SCHREIBPINSEL) bi3 +

Korean:

筆 + 笔 붓 필 (붓acalligraphy brush for writing)
2 NHSK word(s): 铅笔* 3 qian1 bi3(lead) pencil/ CL:支[zhi1];枝[zhi1];桿|杆[gan3] 笔记本* 4 bi3 ji4 ben3notebook/ CL:本[ben3]
KOREAN6000 word(s):
2 KOREAN 2500 New HSK words):
铅笔 + qiānbǐ 연필. yeonpil.
笔记本 + bǐjìběn 노트. 수첩. 비망록. noteu. sucheob. bimanglog.
3 KOREAN Sentence(s):
我要需圆珠笔和彩色笔。 + 저는 볼펜과 매직이 필요해요. jeoneun bolpenkwah maejigi pilyohaeyo.
我需要一支圆珠笔。 + 저는 펜이 필요해요. jeoneun peni pilyohaeyo.
这儿有一张纸和一支圆珠笔吗？ + 여기 종이와 펜이 있어요? yeo-gi jon-giwah peni isseoyo?