Learn Turkish: Tamam, yeter! Teşekkürler. - Okay, that's enough! Thank you.

Yeter is actually a verb! It comes from the root verb yetmek, which means "to be enough" or "to suffice." In this sentence, it is in a present tense form that literally translates to "it suffices." As a beginner, it is perfectly fine to just memorize it as a fixed everyday phrase for "that's enough!"

What is the difference between "teşekkürler" and "teşekkür ederim"?

Teşekkürler translates to "thanks," while teşekkür ederim means "I thank you." The -ler ending in teşekkürler is the plural suffix, so it literally means "thanks." It is slightly more casual and faster to say, exactly like the difference between "thanks" and "thank you" in English.

Does the word "tamam" only mean "okay" in conversational Turkish?

While it is the standard everyday word for "okay" or "alright," tamam also carries the core meaning of "complete" or "done." If someone is pouring you a drink or giving you food, saying tamam means "that is the exact amount I want," which pairs perfectly with yeter to stop them.