Your question is oddly phrased. If you would like to know 5 familiar words, these would include a, the, is, I, and at. Those five are quite familiar.
cinco
pent (as in pentagon)
Quatrain.
quintet quintuplet quins
Four thousand fifty-five.
One and a half. One and five tenths.
mean
Do you mean five letters? That could be "banjo."
Eight point five zero percent. Is that what you mean?
If you mean as currency it is forty-five million dollars.
The Five-Times when words fail: S.A.F.E.R.
Five words that mean nice are pleasant, good, pretty, handsome, kind, or fine.
brain bump ouch an excuse tumor cephalgia...no this 1 is real
8.5022 = eight and five thousand twenty-two ten-thousandths.