Definitions for "Phonebook"
A feature on a phone that allows the storage of names and telephone numbers in the phone's memory. More advanced phones allow users to store further information such as images, alternative phone numbers and email addresses. The information in the mobile phone's phonebook can be stored on either the SIM card or the phone's internal memory.
a directory containing an alphabetical list of telephone subscribers and their telephone numbers
refers to the list of names and telephone numbers that are stored on a mobile phone or SIM card for easy access when making calls or sending messages. Adding a person to your phonebook will also enable you to take advantage of any special caller id features that your phone may offer, such as playing a specific ringtone for certain callers and/or displaying their picture (preferably clothed) when they call you.