1. useful - Adjective
2. useful - Adjective Satellite
Full of use, advantage, or profit; producing, or having power to produce, good; serviceable for any end or object; helpful toward advancing any purpose; beneficial; profitable; advantageous; as, vessels and instruments useful in a family; books useful for improvement; useful knowledge; useful arts.
Source: Webster's dictionaryutilitarian steel tables Source: Internet
the girl felt motherly and useful Source: Internet
a useful job Source: Internet
a useful member of society Source: Internet
A bump die can be a very useful tool to anyone who owns a fine shooting rifle with a chamber that is cut to minimum headspace dimensions, as the die allows the case to be fitted to this unique chamber. citation Another die is the "hand die". Source: Internet
A biological weapon is useful to terrorists mainly as a method of creating mass panic and disruption to a state or a country. Source: Internet