Electronic device for providing search service, and operating method therefor

A method for operating an electronic device, the method comprising:

• obtaining a plurality of first logs regarding search words obtained from a plurality of electronic devices through a communication module;
• identifying a plurality of second logs classified per session (1) established within a first specific period, and (2) related to a specified search word and specified content, among the plurality of first logs;
• determining information about a first effective search count for a first candidate word corresponding to the specified search word by using the plurality of second logs;
• determining a lifetime of the first candidate word by using the information about the first effective search count and the first specific period, based on the information about the first effective search count that exceeds a first threshold;
• and
• associating the first candidate word to the specified search word;
• and
• registering the first candidate word and the lifetime of the first candidate word in a search dictionary.

An electronic device comprising:

• a communication module;
• a display;
• and
• a processor operatively connected to the communication module and the display,
• wherein the processor is configured to:
• obtain a search dictionary from an external electronic device through the communication module;
• obtain a first word from a user;
• and
• display a second word through the display based on the first word being registered in the search dictionary to be associated with the second word, and a lifetime of the first word registered in the search dictionary being effective,
• wherein the first word is registered to be associated with the second word in the search dictionary, based on information about a first effective search count for the first word exceeding a first threshold,
• wherein the information about the first effective search count is determined by using a plurality of second logs classified per session (1) established within a first specific period and (2) related to the second word specified by an interaction to release a session and first content specified by the interaction, among a plurality of first logs regarding search words obtained from a plurality of electronic devices, and
• wherein the lifetime of the first word is determined by using the information about the first effective search count and the first specific period and is, together with the first word, registered in the search dictionary.