although; even if
हालाँकि
English Usage: Though it was raining, we went for a walk.
Hindi Usage: हालाँकि बारिश हो रही थी, हम टहलने गए।
informal variation of "though," often used to soften a statement
हालाँकि (अनौपचारिक)
English Usage: I didn't like the movie, tho it had some good moments.
Hindi Usage: मुझे फिल्म पसंद नहीं आई, हालाँकि इसके कुछ अच्छे पल थे।