Meaning

• Upright; vertical or reaching broadly upwards.

• (of body parts) Rigid, firm; standing out perpendicularly, especially as the result of stimulation.

  "The penis should be fully erect before commencing copulation."

• (of a man) Having an erect penis

  "OK, baby, I'm erect now. Let's get it on!"

• Bold; confident; free from depression; undismayed.

• Directed upward; raised; uplifted.

• Watchful; alert.

• Elevated, as the tips of wings, heads of serpents, etc.