My kids were all relatively late talkers.
DD1 said her first word at about 19 months. She was actually already into speech therapy, because we were alarmed at the delay, and than WHAM one day she started talking. Within a week, she had 50 words.
DS started saying words around 18 months, and then slowly acquired words at a steady pace. He started making short sentences at 25 months. Which is, again, a bit on the late side of normal, but still within a normal range.
DD2 started saying words at around 15 or 16 months. She said her first two word phrase at 19 months, and probably had full sentences by 23 months. Which actually, now that I look at it, isn't really late at all. Probably fairly average.
At 14 months I would be alarmed if there was no imitation, no consonant-vowel babbling like "ba ba ba" or "ma ma ma," no eye contact, very little sign that LO understands what you say, no following your line of sight or looking at what you point at, or no attempt to communicate non-verbally ( like lifting her arms to be picked up, or gesturing at an object she wants, or patting you affectionately). I wouldn't worry at all about no words until around 18 months, and even then, if all the other signs of normal development were in place, I'd wait a month or two more before looking for help. (DD1 taught me that!)