A method for output of an acoustic signal by means of a navigation system, wherein the navigation system comprises at least one database and an acoustic output means, comprising the steps of: storing of: - a plurality of phoneme sequences in a first state and - a plurality of predefined context information, which define a second state, in the at least one database, wherein: - the phoneme sequence represents a grammatical noun, - the first state of the phoneme sequence is a non-declined case of the noun, and - the second state of the phoneme sequence is a declined case of the noun; selecting at least one of the plurality of phoneme sequences based on a control signal received within the framework of a route guidance, wherein the received control signal comprises a first identifier of a designation of a location found by the navigation system and a second identifier of a maneuvering hint to be output, and wherein the step of selecting further comprises: - selecting the at least one phoneme sequence based on the first identifier; - selecting at least one of the predefined context information based on the second identifier; determining a desired second state of the at least one selected phoneme sequence based on the selected context information; changing at least one part of the selected phoneme sequence in order to transit the selected phoneme sequence into the specified second state based on a set of rules, wherein the part to be changed of the phoneme sequence is replaced by means of a regular expression; and converting the phoneme sequence in the second state into an acoustic signal for output by means of the acoustic output means. storing of: - a plurality of phoneme sequences in a first state and - a plurality of predefined context information, which define a second state, in the at least one database, wherein: - the phoneme sequence represents a grammatical noun, - the first state of the phoneme sequence is a non-declined case of the noun, and - the second state of the phoneme sequence is a declined case of the noun; - a plurality of phoneme sequences in a first state and - a plurality of predefined context information, which define a second state, in the at least one database, wherein: - the phoneme sequence represents a grammatical noun, - the first state of the phoneme sequence is a non-declined case of the noun, and - the second state of the phoneme sequence is a declined case of the noun; selecting at least one of the plurality of phoneme sequences based on a control signal received within the framework of a route guidance, wherein the received control signal comprises a first identifier of a designation of a location found by the navigation system and a second identifier of a maneuvering hint to be output, and wherein the step of selecting further comprises: - selecting the at least one phoneme sequence based on the first identifier; - selecting at least one of the predefined context information based on the second identifier; - selecting the at least one phoneme sequence based on the first identifier; - selecting at least one of the predefined context information based on the second identifier; determining a desired second state of the at least one selected phoneme sequence based on the selected context information; changing at least one part of the selected phoneme sequence in order to transit the selected phoneme sequence into the specified second state based on a set of rules, wherein the part to be changed of the phoneme sequence is replaced by means of a regular expression; and converting the phoneme sequence in the second state into an acoustic signal for output by means of the acoustic output means.