forever
detector or metal detectors
It depends. A synonym or an antonym to what?For instance:The word "debris" is an antonym to the words "whole, complete, neatness".The word "debris" is a synonym to the word "trash, remains, rubbish".
A synonym for common noun is word.
Prediction
play
The universe is perpetual as we know of so far.
rule :) A+
endless - unending - infinite - never-ending - perpetual
Remonstrations
counting
blood
Counting
Cow.
w
orbit
Non-religious.
A thesaurus.