Undefine and redefine
it means in a 100 years like a century
Unhead
define strategy
Un is a prefix that works with well, making unwell.
'dis' making 'disloyal'
That would be spec, from the word spectate which means to watch or observe.
Define ACE
A prefix is a word used at the beginning of a sentence. "Re" is a prefix that means again.
cyto you can think about that is cytoplasm.Go inside the cytoplasm.
Postdoctorate has a prefix of 'post' meaning after, and a suffix of 'ate' making it an adjective/descriptive word.
Too many to define. Instead, think of "ex-" as a prefix for hundreds of other words, like "exchange" or "exterminate"