- (initialism) . Active Server Pages.
- (initialism) . Application Service Provider.
- (acronym) . An extensible baton, used by police and security officers. From the name of the manufacturer: Amalgamated Security Products.
- Noun. (archaic) A water snake.
- Noun. A venomous viper native to southwestern Europe (''Vipera aspis'').
- Noun. The Egyptian cobra (''Naja haje'').
- Noun. A type of European fish (''Aspius aspius'').