What does substantiate mean in crosswords?

substantiate means: solidify, firm, or strengthen

Which crossword clues can have substantiate as the answer?

Possible clues for substantiate include "Back up with evidence".

Word entry · 12 letters

Best crossword clue

"Back up with evidence"

12 letters · collected on this word page

12 lettersSorted aabeinsstttuStarts with SEnds with E1 clues

1S2U3B4S5T6A7N8T9I10A11T12E

01“Back up with evidence”12 letters

Not quite right?

S___________