To rattle or shiver.
To tremble or quaver.
To move with an uneven or rocking motion, or unsteadily to and fro.
To cause to wobble.
To vacillate in one's opinions.
A variation in the third nucleotide of a codon that codes for a specific aminoacid
A tremulous sound.
A low-frequency oscillation sometimes used in dubstep
An unsteady motion.