to make a sound with your lips closed while listening to a tune
ঠোঁট বন্ধ রেখে সুরের সঙ্গে গুনগুন করা
"He hummed along to the melody playing in the background."
"সে পটভূমিতে বাজতে থাকা সুরের সঙ্গে গুনগুন করছিল।"
to officially approve a trade deal or document
to pay attention or listen carefully
to make sure someone is safe or doing well
to allow someone to know personal or emotional details about...
to make something seem less important or serious than it is
to form a partnership for a specific goal or project