sand lance vs sand launce

sand lance and sand launce both are nouns.

Word	Noun	Adjective	Verb	Adverb
sand lance	Yes	No	No	No
sand launce	Yes	No	No	No

As nouns, sand lance and sand launce are synonyms defined as:

sand lance and sand launce: very small silvery eellike schooling fishes that burrow into sandy beaches

Other synonyms of sand lance include launce, sand eel.

sand lance (noun)	sand launce (noun)
very small silvery eellike schooling fishes that burrow into sandy beaches	very small silvery eellike schooling fishes that burrow into sandy beaches