فعّل JavaScript أو افتح هذه الصفحة في متصفح يسمح بتشغيل السكربتات لموقع polidict.com.
تردد
the rate at which something occurs or is repeated over a particular period of time
noun
أمثلة:
• The frequency of earthquakes has increased in the region.
• Radio stations broadcast on different frequencies.