4.10 History of Communication2

to make use of or put to use

• apply
• vibrate
• breakthrough
• several
• practical

to cause to turn around on an axis

• rotate
• apply
• vibrate
• breakthrough
• several

to cause to become a magnet

• magnetize
• rotate
• apply
• vibrate
• breakthrough

far from towns or human settlement

• remote
• magnetize
• rotate
• apply
• vibrate

to change into another form or state

• convert
• remote
• magnetize
• rotate
• apply

to change from code into ordinary language

• decode
• convert
• remote
• magnetize
• rotate

able to be used or put into practice; useful

• practical
• decode
• convert
• remote
• magnetize

being more than two but fewer than many

• several
• practical
• decode
• convert
• remote

an act of overcoming or moving through an obstacle or restriction

• breakthrough
• several
• practical
• decode
• convert

to move back and forth very rapidly and steadily

• vibrate
• breakthrough
• several
• practical
• decode