0 Old HSK word(s):
密切配合* *

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

密 dense, thick, close / intimate
切 cut, mince, slice, carve
配 match, pair / equal / blend
合 combine, unite, join / gather
Hsk Characters:
HSK -Characters and beyond:
GbBig5EngRadMegaTripleMultilingual