7 Old HSK word(s):

☊突然 ** A

☊突出 ** B

☊突击 ** B

☊突破 ** C

☊冲突 ** C

☊秃 ** D

☊凸 ** D

凸 protrude, bulge out, convex

Hsk Characters: 凸 * 秃 * 突 *

HSK -Characters and beyond:

Gb	Big5	Eng	Rad	Mega	Triple	Multilingual
秃 79C3 +	禿 + +	bald	禾	几	Grain 几 (WIEVIELE) tu1	+
突 7A81 +	突 + +	suddenly, abruptly, unexpectedly	穴	犬	Cave 犬 (HUND) tu1	+
凸 51F8 +	凸 + +	protrude, bulge out, convex	凵	凸	Pit 凸 (KONVEX) tu1	+

Korean:

6 NHSK word(s): 突然 * 3 tu1 ran2sudden/ abrupt/ unexpected 突出 * 5 tu1 chu1prominent/ outstanding/ to give prominence to/ to protrude/ to project 冲突 * 6 chong1 tu1conflict/ to conflict/ clash of opposing forces/ collision (of interests)/ contention 凹凸 * 6 ao1 tu1bumpy/ uneven/ slotted and tabbed joint/ crenelation 秃 * 6 tu1bald/ blunt 突破 * 6 tu1 po4to break through/ to make a breakthrough/ to surmount or break the back of (a task etc)/ (of ball sports) to break through a defense

KOREAN6000 word(s):

KOREAN 2500 New HSK words):

KOREAN Sentence(s):