S1K5Y4W4R1I1T1T1E1N1
20 points
SKYWRITTEN is validvalid
SKYWRITE, to write in the sky by releasing a visible vapor from an airplane [v]
SKYWRITE, to write in the sky with vapour from a plane [v]
SKYWRITE, to write in the sky by releasing a visible vapor from an airplane [v]
SKYWRITE, to write in the sky with vapour from a plane [v]