Visible light waves are the only electromagnetic waves that the human eye can see. These waves are visible as the seven colors of the rainbow known as red, orange, yellow, green, blue, indigo and violet.
Since none has the meanings ânot oneâ and ânot any,â some insist that it always be treated as a singular and be followed by a singular verb: The rescue party searched for survivors, but none was found. However, none has been used with both singular and plural verbs since the 9th century.
Definition of 'all or nothing'. all or nothing. phrase. You can use all or nothing to say that either something must be done fully and completely or else it cannot be done at all. Either he went through with this thing or he did not; it was all or nothing.