3 Old HSK word(s): 
☊丝 ** B ☊丝毫 ** C ☊螺丝钉 ** D
Definitions from Unihan Copyright © 1991-2015 Unicode® Inc. All rights reserved.
螺 spiral shell / conch / spiral
丝 silk / fine thread / wire / strings
钉 nail, spike / pursue closely
Hsk Characters: 丝 *
HSK -Characters and beyond:
| Gb | Big5 | Eng | Rad | Mega | Triple | Multilingual |
|---|
| 丝 4E1D + | 絲 + + | silk / fine thread / wire / strings | 一 | 丝 | One 丝 (SEIDE ) si1 | + |
Korean:
4 NHSK word(s): 丝绸* 5 si1 chou2silk cloth/ silk 丝毫* 5 si1 hao2the slightest amount or degree/ a bit 螺丝钉* 6 luo2 si1 ding1screw 一丝不苟* 6 yi1 si1 bu4 gou3not one thread loose (idiom)/ strictly according to the rules/ meticulous/ not one hair out of place
KOREAN6000 word(s):
KOREAN 2500 New HSK words):
KOREAN Sentence(s):
