em relação a meaning in English

against▼(in contrast or comparison with)
preposition
[UK: ə.ˈɡenst] [US: ə.ˈɡenst]

in relation to▼(by comparison with, compared with)
preposition
[UK: ɪn rɪ.ˈleɪʃ.n̩ tuː] [US: ɪn ri.ˈleɪʃ.n̩ ˈtuː]

with respect to▼(pertaining to)
preposition
[UK: wɪð rɪ.ˈspekt tuː] [US: wɪθ rə.ˈspekt ˈtuː]