Plainly
look up a word, understand it — no rabbit hole
plausible
adjectivePLAW-zuh-bull
meaning in plain English
Picture someone giving a reason that sounds like it could really be true. It means the idea seems reasonable enough to believe.
Think of a story that sounds real enough – that’s a plausible excuse.
for example
His excuse for being late sounded plausible, so I didn’t ask any more questions.