ただ
ただ · tada · JLPT N3 · na-adj
just
🎁 Sounds like ta-da! A magician's ta-da: here it is, free, just for you
ただ can mean free of charge (ただで = for free) or just/only (ただの友達 = just a friend). Free and only-this both share a nothing-extra idea. In kanji it is written 只 or 唯 for only, and 徒 for free or in vain.