teelusikatäis tähendus null.

teaspoon [teaspoons]▼◼◼◼noun
[UK: ˈtiː.spuːn] [US: ˈtiː.ˌspuːn]

teaspoonful [teaspoonsful]▼◼◻◻noun
[UK: ˈtiː.spuːn.fʊl] [US: ˈtiː.spuːn.fʊl]