уж
adverb
be sure; really
already
conversational
Used as a particle to express intensification of emotion, often when admonishing or requesting of someone, including in a few set phrases.
да уж
yeah/well (in a disappointed, annoyed or ironic tone)
и уж то́чно
and certainly (followed by a negative phrase, e.g., one beginning with "not", "doesn't", "didn't", "wasn't", etc.)
уж сли́шком
too much/overkill
скоре́е уж
more like
нет уж
no (with the connotation of being fed up and wanting to move on)
Тут уж ничего́ не поде́лаешь.
There's nothing you can do.
Ох уж э́то / э́тот / э́ти...
Oh, that/those... (expressing irony after an example of what is mentioned has been demonstrated)
Ох уж э́то его́ воображе́ние!
Oh, that imagination of his!