Is it a Gig or a hack?

Because I'm about to dtch a notebook that is now devoid of empty pages but holds a few notes that deserve keeping here are a few notes  about writing stories set in the Rgency period that I might need to refer to in the future. I find it terribly easy to be confused by terms such as these when I am notusing them on a regular basis.

Entailment:  Inherited property inherited only by the male line. Legal agreement, not easily broken.
Gig: a two-wheeled carriage for two people drawn by one or two horses. Young man's choice!
Hack: Rented carriage. Scandalous for young women to travel alone in one.
Militia: Several militia regiment of soldiers stationed throughout the country. A man from the lower classes could enter as an officer. In the army, a man had to be of respected background and have enough money to buy his commission.
Pelisse: long dress-like coat made of silk and lined with fur.
Petticoats: made of linen
Phaeton: an open carriage with four wheels.
Post chaise: Long journeys began with one's own horses and chaise; the horses were sent home and hired horses completed the journey.
Postillion: person who rides/guides a horse pulling a carriage. (For years I
thought a postillion was a Chinese building!)
Reticule: laadies bag with a drawstring closure and a long strap.
Spencer: Tight fitting waist length jacket for ladies
Travelling post: hiring the chaise, the horses and the postillion.
Stagecoach: public transport for the lower classes. No lady travelled alone by stagecoach. Royal Mail coaches were quicker but more expensive than the regualar stage coach.