speaker noun
1 person who makes a speech
ADJ. brilliant, good | keynote, main, principal | guest, invited, visiting | public She's a good public speaker. | after-dinner
2 person who speaks a particular language
ADJ. fluent He's a fluent Arabic speaker. | mother-tongue, native a native speaker of English | non-native | Japanese, Russian, etc.
You can also check other dicts: speaker (English, 中文解释 ), wordnet sense, Collins Definition