A counter is a word or phrase used to keep track of the number of occurrences of a particular event or object.
Sentences
I have three apples on the table, but I only need one more to make four in total.
The teacher asked the students to keep a counter of how many times they used the word 'like' in their speech.
Spanish: Tres personas llegaron tarde a la reunión. (Three people arrived late to the meeting.)
French: J'ai mangé deux croissants ce matin. (I ate two croissants this morning.)
Japanese: 彼は一日に何回もその曲を聞いた。 (He listened to that song many times in one day.)