en cuanto a meaning in English

as for▼(regarding; about)
preposition

as regards▼(regarding)
preposition
[UK: əz rɪ.ˈɡɑːdz ˈsʌm.θɪŋ] [US: ˈæz rɪ.ˈɡɑːrdz ˈsʌm.θɪŋ]

as to▼(with reference or regard to)
preposition
[UK: əz tuː] [US: ˈæz ˈtuː]

in respect of▼(pertaining to)
preposition
[UK: ɪn rɪ.ˈspekt əv ˈsʌm.θɪŋ] [US: ɪn rə.ˈspekt əv ˈsʌm.θɪŋ]

of▼(introducing topic or subject matter)
preposition
[UK: əv] [US: əv]

regarding▼(concerning)
preposition
[UK: rɪ.ˈɡɑːd.ɪŋ] [US: rə.ˈɡɑːrd.ɪŋ]

with regard to▼(concerning)
preposition
[UK: wɪð rɪ.ˈɡɑːd tuː ˈsʌm.θɪŋ] [US: wɪθ rə.ˈɡɑːrd ˈtuː ˈsʌm.θɪŋ]

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