Jacks and Windjammer

Jacks noun - A game in which jackstones are thrown and picked up in various groups between bounces of a small rubber ball.

Windjammer and jacks are semantically related. in sailor topic. In some cases you can use "Windjammer" instead a noun "Jacks".

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

Jacks and windjammer are semantically related. Sometimes you can replace term "Jacks" with "Windjammer", this nouns are similar.