I know spoon is cuchara in Spanish. But I have also read that cuchara is a vulgar slang term for vagina in countries like Venezuela, Guatemala, and El Salvador. My question is what's the word one should use for spoon in those countries so as not to sound vulgar or uneducated? Certainly cuchara doesn't sound like a safe bet in a society where it can stand for a sex organ, right?
Feel free to say cuchara, the situation and the context will be enough for your interlocutor to understand if your're talking about a spoon... or not.
Although is told that in Guatemala people replace this word with the diminutive "cucharilla" when speaking about spoons to avoid confusion, it's not true: in Guatemala people do say cuchara for a spoon, and cucharilla for a little spoon.
Hope that helps :)
I'll add an answer since the current accepted answer doesn't reflect the situation in Guatemala.
The answer is very simple, too. In Guatemalan Spanish
cuchara is the word you use. Context will make it very clear, and, unless you're among close friends, no one is going to assume you're using the slang term.
Necesito una cuchara... Si no, no puedo comer.
That's perfectly valid, no one will overthink it.
cucharilla would mean a small spoon here, just like the other post pointed out.
Sadly I don't have any sources, but I've been living here for 20+ years.