that is all
that's all
Definition of that is all
1 —used to say that something is finished, completed, or enough “Do you need anything else?” “No, thanks, that's all.” They're (just) different, that's all.
2 —used to say that something is all that is needed or wanted I went there to visit friends and that's all.
From the M-W Editors
Word by Word Definitions
: the whole amount, quantity, or extent of
: as much as possible
: every member or individual component of
: wholly, quite
: only, exclusively
: just
: the whole number, quantity, or amount : totality
: used in such phrases as for all I know, for all I care, and for all the good it does to indicate a lack of knowledge, interest, or effectiveness
: everybody, everything
: the whole of one's possessions, resources, or energy
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