There is no synonym for 3.
The answer is "sky."
nip
A word that starts with the letter A and means move is:ambulate
Modernize is a word that starts with m and means to upgrade.
Dud
"Administrator" is a word that means leader and starts with the letter a.
Make is a word that means to create and starts with "m".
A word that starts with "d" and means a loud noise is din.
A word that starts with CA that means to move friskily is to cavort.
"Psychologist" is a word that starts with a p and means counselor.
maw
"Bisect" is a word that means cut into two halves which starts with bi.