The phrase "allow it to float" is correct and usable in written English.
You can use it in contexts where you want to suggest letting something remain unanchored or free to move, often metaphorically.
Example: "In this brainstorming session, let's allow our ideas to float without judgment to encourage creativity."
Alternatives: "let it drift" or "permit it to hover".
"Allow it to float up into the atmosphere, taking the tension where it can't harm you.
It has also restored the pneumatic system in the laboratory Dr. White is using, to allow it to float.
After two years of managing the exchange rate of the Egyptian pound, the government will allow it to float freely beginning today.
The lira, meanwhile, has slumped in value against the dollar since the government was forced to give up trying to manage the exchange rate and allow it to float freely in the market.
Canada's decision to free her dollar from a fixed peg to allow it to "float" upward triggered the reaction in cur rencies of other surplus coun tries such as West Germany, the Netherlands and Japan.
The small amount of thermal expansion, <1 %, cannot lower the density of a parcel of bottom-mantle matter sufficiently so as to allow it to float to the mantle top.
There is, for example, the Paracel map where a large abandoned ship can be discovered just offshore and freed from its anchor, allowing it to float aground, bringing a tidal wave with it.
The wee octopus is known for the distinctive webbing between its tentacles, which allows it to float like a parachute while using the fins on its mantle to steer.
But in August its central bank abandoned efforts to prop up its currency and allowed it to float, leading to a depreciation of about 14% in real, trade-weighted terms from May to now.
Plastic's low density allows it to float on water and be swept away by winds and waves across the seas.
The issue is the value of the yuan, which the Beijing government pegs to the dollar rather than allowing it to float in world currency markets.
