Sailboat and Sloop

Sailboat noun - A boat equipped with one or more sails.

Sloop and sailboat are semantically related in boat propelled with wind by sailcloth topic. In some cases you can use "Sloop" instead a noun "Sailboat".

Sloop noun - A sailing vessel with a single mast set about one third of the boat's length aft of the bow.

Sailboat and sloop are semantically related in pleasure boat topic. You can use "Sailboat" instead a noun "Sloop", if it concerns topics such as vehicle for water travel.