Product
The words only your work uses
Every dictation tool handles ordinary sentences. What decides whether you keep using one is whether it spells the names in your codebase, your team and your clients correctly.
Proper nouns are where dictation actually fails
A recogniser trained on the general language has never seen your repository name, your colleague’s surname or the library you adopted last month. It will produce a plausible neighbour, and a plausible neighbour is worse than an obvious error because you stop noticing it.
The dictionary is a list you add to as you work: a spelling, and optionally what it sounds like. Voicecape applies it after recognition, so a term you added takes effect on the next sentence rather than after a retraining cycle.
Per language, on this Mac
Entries are kept per language, because the same sound maps to different spellings depending on which language you are speaking. The list lives on your Mac — it is not synced to a server, and it is not used to train anything.
It is also the part of your setup that is painful to lose, which is why Backup exists: the backup file carries your dictionary and settings to the next Mac, and carries no transcripts.
Questions about this
How many entries can I add?
There is no practical limit — the list is a local file.
Does the dictionary leave my Mac?
Only if you export it yourself with Backup. It is not synced.
Does it work with Verbatim?
Yes. The dictionary corrects spelling; it does not add or remove words.