Meanings

to examine tickets

decoding

signal converter

encoding (act of encoding a signal)

signal distortion

coded character set

character coding system

character encoding scheme

reduced fare ticket

connection (interline) ticket

umlaut

Morse code (esp. the code)

acute accent

code-division multiple access

half rest

codeword

to put a period to

to put an end (to)

signs, symbols and characters used in manga to represent actions, emotions, etc.

musical note