Compound nouns formed with prepositions a, de, en

Question

Is cuillère à thé a fixed phrase meaning a teaspoon for measuring? The lesson says à generally means what something is used for, however, this phrase would then mean "a spoon for tea," not a "teaspoon."

Answer

I think that you are correct literally to express "cuillère à thé" as "a spoon for tea" but we say in english "a teaspoon" both are the same thing, just expressed slightly different between the two languages.

Answer

Larousse suggests «une cuillère à cafe», «une cuillère à moka» and «une petite cullère». (It also suggests «une cuiller» from English to French, but this otherwise seems to get translated as spoon.)