Honestly not much. At all. Maybe 5 words semi-reliably???
We found it hard going as:
- We were early speakers
- Big contrast with peers.
DD's baby 'best friend" was saying all sorts "love you" "yes please" "no thanks" "bye bye mummy" "book please" "open door" and could intelligably sing nursery rhymes like old Mc Donald!!!!
In contrast DD was like " ugurrrrr mummy" <while staring directly at my husband> 🙈 and could basically say mummy daddy, hi hi! And bye bye!
but Dd's understanding was good. She could follow instructions and showed other queues of good intelligence (copying adults, knew routine, knew destinations of familiar travel routes) we focused on this not "no. of words"
At 18m (and she has never said he word since... she 21m now) my DH had a fry up while she had cereal. He couldn't read the room/her annoyance and eventually she very clearly yelled "SAUSAGE! Saus-aaaaaage! SAUSAGGGEEE!!!!!" With a little grabby hand out straining for his plate 😅
Once I'd laughed my head off, I realised she was building up a big lexicon even if she wasn't using it.
Speaking explosion at 19/20m and can now name a lot of nouns (socks, book, door, lock, people's names etc etc) and has accrued utility words (more, again, THIS! <Points frantically at object>, UP!!!!!!) Has 20+ words easily.
We do bedtime books (flap books like spot the dog) and started a bit of miss Rachel as genius baby best friend watches it a tonne and had since 8-10m. My friend genuinely reckons it's why her DD is so articulate! I was skeptical but I do think miss Rachel has improved Dd's language skills. 🤷♀️