instant message

noun 0.917

instant messaging

noun 0.916

messenger

noun 0.631

short message service

noun 0.587

text messaging

noun 0.584

chat room

noun 0.568

aim

noun 0.568

text message

noun 0.558

messaging

noun 0.543

instant

noun 0.538

chatbot

noun 0.534

intercom

noun 0.530

group chat

noun 0.529

emoticon

noun 0.520

electronic mail

noun 0.520

private message

noun 0.519

second messenger

noun 0.516

chatting

noun 0.513

chat

noun 0.510

messager

noun 0.505

message unit

noun 0.503

internet service provider

noun 0.500