حَلْقَة: دَائِرَة ring; annulus; annulation; circle; link (of a chain, etc.); loop; annulet, ringlet; circlet

حَلْقَة (الأُذُن): قُرْط eardrop, earring

حَلْقَة (مِنَ النّاس) group, circle; body, company; clique, coterie

حَلْقَة (مِنْ قِصّةٍ مُتَسَلْسِلَةٍ إلخ) episode, installment, number, part (of a serial story, of a series, of a program, of a sequence, etc.)

حَلْقَةُ الاتّصَالِ أو الوَصْل connecting link

حَلْقَةٌ دِرَاسِيّة seminar; colloquium; symposium; teach-in

حَلْقَةٌ سَنَوِيّة (فِي خَشَبِ شَجَرَة) annual ring

حَلْقَةٌ مُفْرَغَة vicious circle

الحَلَقَةُ المَفْقُودَة missing link, intermediate form

فِي الحَلْقَةِ السّادِسَةِ مِنْ عُمْرِهِ in his fifties, in the sixth decade of his life