Jack-in-the-box and Skipjack

Jack-in-the-box noun - Plaything consisting of a toy clown that jumps out of a box when the lid is opened.

Skipjack and jack-in-the-box are semantically related. In some cases you can use "Skipjack" instead a noun phrase "Jack-in-the-box".

Skipjack noun - Oceanic schooling tuna of considerable value in Pacific but less in Atlantic; reaches 75 pounds; very similar to if not the same as oceanic bonito.

Jack-in-the-box and skipjack are semantically related. You can use "Jack-in-the-box" instead a noun "Skipjack".