™You send a limit order through a broker; it may route the instruction to another venue rather than selling you its own inventory.
Orders & Market Structure
Broker
A firm or person that handles securities transactions for customers, subject to applicable regulation.
Plain-English context
Put the definition to work.
A familiar app interface does not identify the executing venue or eliminate custody, routing and account-rule questions.
Further reading and verification. Examples are hypothetical, not current quotes or recommendations. Product terms, tax treatment and market rules can change. FINRA — order types and execution