Meaning

• To grasp or grip firmly.

  "Hold on tightly to the railing."

• To keep; to store something for someone.

  "Hold on to my umbrella while I ride the roller coaster."

• Wait a short while.

  "Hold on while I get my coat."

• To remain loyal.

  "He didn't give up his fandom when others did; he held on."

• To persist.