Which of the following is a normal language development milestone for a 14-month-old child?

For a 14-month-old child, the most typical language development milestone involves using jargon that may not yet be easily understood by others. This stage is characterized by the child experimenting with sounds and syllable combinations, producing a form of expressive language that may not have specific meanings but reflects their burgeoning communicative intent.

At this age, children are still very much in the early stages of speech development. They may produce sounds resembling words, but these often lack clarity and may not align with recognizable vocabulary. This playful use of sounds and phrases contributes to their linguistic development by allowing them to practice verbalization and social interaction, even if others cannot decipher their speech.

In contrast to this, using multiple intelligible words frequently or engaging in complex sentences is more advanced and typically occurs later in a child's development. Consistently using single words in context is a milestone observed a bit earlier, around 12 months, but full consistency may not be established by 14 months. Therefore, at 14 months, it is developmentally normal for children to produce jargon as part of their language exploration.