Fluency relates to a child's ability to communicate with a typical degree of fluent speech. More often the word "stuttering" is used to describe dysfluent speech. Some examples of dysfluencies in a child's speech include word repetitions ("Who who who is that?), sound/syllable repetitions ("M-m-m-mom"), phrase repetitions (I want - I want ..."), etc. As a child's language develops they may go through typical periods of dysfluent speech. The typical age for a child to have periods of stuttering is between ages 2-4 and may last for a year or longer. If your child is experiencing stuttering that extends beyond a year or is to the degree where the stuttering is significantly interfering with his/her ability to communicate effectively, you should contact an Speech Professional about your concerns.