To go on stubbornly or resolutely.
To repeat an utterance.
To cause to persist; make permanent.
To continue to exist.
To move with an uneven or rocking motion, or unsteadily to and fro.
To tremble or quaver.
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.