i. titreşim, sallanma, sarsıntı. I don’t use the vibration feature on my cell phone. (Cep telefonumun titreşim özelliğini kullanmıyorum.)

The act of vibrating, or the state of being vibrated, or
in vibratory motion; quick motion to and fro; oscillation, as of a
pendulum or musical string.

A limited reciprocating motion of a particle of an
elastic body or medium in alternately opposite directions from its
position of equilibrium, when that equilibrium has been disturbed, as
when a stretched cord or other body produces musical notes, or
particles of air transmit sounds to the ear. The path of the particle
may be in a straight line, in a circular arc, or in any curve whatever.