számjel (#) означает в английский

number sign [number signs]▼◼◼◼noun
[UK: ˈnʌm.bə(r) saɪn] [US: ˈnʌm.br̩ ˈsaɪn]

hash key▼noun
[UK: hæʃ kiː] [US: ˈhæʃ ˈkiː]