merely, simply, just, only, but -- (and nothing more; "I was merely asking"; "it is simply a matter of time"; "just a scratch"; "he was only a child"; "hopes that last but a moment")
just, simply -- (absolutely; "I just can't take it anymore"; "he was just grand as Romeo"; "it's simply beautiful!")
simply -- (absolutely; altogether; really; "we are simply broke")
plainly, simply -- (in a simple manner; without extravagance or embellishment; "she was dressed plainly"; "they lived very simply")