This is the 684th most frequent Indonesian word.
tunggal
"Single" or "sole."
Here, 'tunggal' is used to mean 'single,' referring to a single-parent family.
Keluarga saya adalah keluarga tunggal.
My family is a single-parent family.
In this sentence, 'tunggal' implies 'sole' or 'the only one' in a context of standing out as the lone winner.
Ia menjadi juara tunggal dalam pertandingan itu.
He became the sole champion in that competition.
Here, 'tunggal' refers to 'singles,' the format of the badminton game.