firmament

SKY
List of words for the clue firmament from the crossword:
WELKIN UFOS SURFACE SUPERFICE SPHERE RISEN OVERSIDE HEAVENS HEAVEN EMPYREAN ARIES
WordClue
AZUREsky blue
BUILDINGsky-skraper
FIRMAMENTsky
BOUGHfirm branch of a tree
CONVICTIONfirmly held belief