throwing board vs throwing stick

throwing board and throwing stick both are nouns.

Word	Noun	Adjective	Verb	Adverb
throwing board	Yes	No	No	No
throwing stick	Yes	No	No	No

As nouns, throwing board and throwing stick are synonyms defined as:

throwing board and throwing stick: a device resembling a sling that is used in various primitive societies to propel a dart or spear

Other synonyms of throwing board include dart thrower, spear thrower.

throwing board (noun)	throwing stick (noun)
a device resembling a sling that is used in various primitive societies to propel a dart or spear	a curved piece of wood; when properly thrown will return to thrower
	a device resembling a sling that is used in various primitive societies to propel a dart or spear