This is the 1610th most frequent Japanese word.
掛け
"掛け" (kake) means "to hang," "to apply," or "to pour," depending on context.
Here '掛け' is used as a verb meaning 'to hang' or 'to suspend.'
私は壁に絵を掛けた。
I hung a picture on the wall.
In this context, '掛け' is used to mean 'to make' a phone call.
彼は電話を掛けて、友達と話した。
He made a call and spoke with a friend.
Here '掛け' is part of the verb '話しかける,' meaning 'to start speaking to someone or initiate a conversation.'