How do you pronounce 開關?

Q: How do you pronounce 開關? A: hoi1 gwaan1, e.g.

開關 (hoi1 gwaan1) — meaning, pronunciation, examples

開關 (hoi1 gwaan1, kāi guān) — power switch; gas valve; to open the city (or frontier) gate; to open and close; to switch on and off

開便 (hoi1 bin6) — the outer side; on the further side
開信刀 (hoi1 seon3 dou1) — a letter opener
開出 (hoi1 ceot1) — to issue; to offer; (of vehicle) to depart from
開刀 (hoi1 dou1) — (verb) o undergo a surgery
開去 (hoi1 heoi3) — (of vehicle) to head for; to dimiss (someone from their job)
開口及着脷 (hoi1 hau2 kap6 zoek6 lei6) — (literally: to open one's mouth and bite one's tongue); to be consistently sayi…