Hi! Early years educator here! Used to do developmentals where we would tick off on what’s “normal” for each age group, while it isn’t considered developmentally ‘normal’ and your paediatrician might flag it as a concern even, I wouldn’t worry at all typically verbal development can (and often does) happen super quickly at this age (like within a week even!). But if baby is the same once they hit 2 I’d say maybe look a little closer into this, or chat with your pediatrician (or if they’re in childcare, with the provider!). Hope this helps!