Most conlangs aren't like Blisssymbols -- they have normal words that are made out of roots that can be understood either within the context of the language, or

Most conlangs aren't like Blisssymbols -- they have normal words that are made out of roots that can be understood either within the context of the language, or as in the case of languages like Esperanto and Interlingua, use roots from other languages so that word meanings can be guessed from knowledge of other languages.