Ⅰ.
get in on the ground floor UK INFORMAL (US also get in on the first floor)
► to become involved from the beginning in a business activity that you think will be successful: »
This is our chance to get in on the first floor of an industry that's going to be big.
→ See also DEALING FLOOR(Cf. ↑dealing floor), FACTORY FLOOR(Cf. ↑factory floor), THE SHOP FLOOR(Cf. ↑the shop floor), TRADING FLOOR(Cf. ↑trading floor)
Main Entry: ↑floor
Ⅱ.
get/be in on the ground floor
► to be involved in a project or business activity from the beginning: »
Get in on the ground floor of this booming industry now!
Main Entry: ↑ground floor
Financial and business terms. 2012.