What is the meaning of Adhan?

The call to prayer, which consisted originally of simply four takbirs followed by the statement (أَشْهَدُ أَنْ) لَا إِلٰهَ إِلَّا ٱلله ((ʔašhadu ʔan) lā ʔilāha ʔillā llāh).

adhan (the call to prayer, which consisted originally of simply four takbirs followed by the statement (أَشْهَدُ أَنْ) لَا إِلٰهَ إِلَّا ٱلله ((ʔašhadu ʔan) lā ʔilāha ʔillā llāh))

adhan (the call to prayer, which consisted originally of simply four takbirs followed by the statement (أَشْهَدُ أَنْ) لَا إِلٰهَ إِلَّا ٱلله ((ʔašhadu ʔan) lā ʔilāha ʔillā llāh))

branch

twig

adhan (the call to prayer, which consisted originally of simply four takbirs followed by the statement (أَشْهَدُ أَنْ) لَا إِلٰهَ إِلَّا ٱلله ((ʔašhadu ʔan) lā ʔilāha ʔillā llāh))

adhan (call to prayer)

Source: wiktionary.org