What's the difference between carabine and carbine?

Carabine

Definition:

Example Sentences:

(1) He trusted me to ensure that the carabiners were clicked in, to secure him as well.
(2) Alison Carabine asked him, would you be prepared to pick fruit?

Definition:

(n.) A short, light musket or rifle, esp. one used by mounted soldiers or cavalry.

Example Sentences:

(1) "Gadzhi gave us a lift in the Rolls once in Moscow, but the legroom was somewhat constricted by the presence of a Kalashnikov carbine at our feet," Burns told Washington.
(2) One of the recovered weapons was a Bushmaster carbine, a civilian version of the army's M-16 assault rifle, purchased by Hernandez at Academy sporting goods in Houston.
(3) Hourly employees in California are required by law to get overtime if they work more than eight hours in a single day or 40 hours in a week,” explains a current employee of Carbine.
(4) Also listed are two shotguns and seven rifles, including a military-style AR-15 carbine.
(5) What winds up happening at Carbine (and I believe other NCSoft subsidiaries) is when an hourly associate gets promoted to a staff-level salaried job, they retain their hourly wage and get a very slight pay bump.