Answer: thanx

AnswerCrossword Clue
THANX

"That's great," briefly

THANX

Cutesy expression of appreciation

THANX

Cutesy "Much obliged"

THANX
Letter closer, perhaps
THANX
Shortened word of gratitude
THANXExpressions of gratitude: Popular misspelling.
THANXInformal word of appreciation
THANX"I appreciate it," in text messages
THANXInformal expression of gratitude