altogether

If you're altogether certain, you know it for a fact. Since you're altogether sure that your calculations are correct, go ahead with the experiment. Please wear your goggles just in case.

Never use “all together” (meaning “all in one place”) when you mean altogether (which can also mean "all things considered"). It was risky to bring us all together again after so many years, but you have to admit that altogether we had a good time. Altogether, it could have been worse. It wasn't altogether bad. I suppose we won't do it again next year.

Primary Meanings of altogether

1.
adv
to a complete degree or to the full or entire extent (`whole' is often used informally for `wholly')
2.
n
informal terms for nakedness
Full Definitions of altogether
1

adv to a complete degree or to the full or entire extent (`whole' is often used informally for `wholly')

“it was not altogether her fault”
“an altogether new approach”
Synonyms:
all, completely, entirely, totally, whole, wholly
Antonyms:
part, partially, partly
in part; in some degree; not wholly

adv with everything included or counted

altogether he earns close to a million dollars”
Synonyms:
all told, in all

adv with everything considered (and neglecting details)

altogether, I'm sorry it happened”
Synonyms:
all in all, on the whole, tout ensemble
2

n informal terms for nakedness

“in the altogether
Synonyms:
birthday suit, raw
Type of:
nakedness, nudeness, nudity
the state of being without clothing or covering of any kind

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