Solely, Only, Merely, Simply, Just
adverb, の adjective
The kanji means solely, and this means solely, but also other related things like only or merely. They're all pretty close, so try to remember a few!
ただ
To spice up something you'd describe with words like only and simply, use "ta-da (ただ)" to spice it up. It's like magic! Now it isn't just a gift, it's a TA-DA surprise gift.
彼女は私の母ではなく唯の付き添い人です。
She is not my mother, she’s just a chaperone.