Forty-five and Flintlock

Forty-five noun - A .45-caliber pistol.

Flintlock and forty-five are semantically related in weapon that shoots topic. In some cases you can use "Flintlock" instead a noun phrase "Forty-five".

Flintlock noun - An obsolete gunlock that has flint embedded in the hammer; the flint makes a spark that ignites the charge.

Forty-five and flintlock are semantically related in weapon that shoots topic. You can use "Forty-five" instead a noun "Flintlock".