13-letter words containing b, u, i, l, d, a
- public domain — the status of a literary work or an invention whose copyright or patent has expired or that never had such protection.
- quodlibetical — a subtle or elaborate argument or point of debate, usually on a theological or scholastic subject.
- redial button — a button on a telephone, allowing the user to dial a number again
- refundability — to give back or restore (especially money); repay.
- sound library — a collection of sounds stored on file (for example on CDs, DVDs, or as digital audio files)
- subdelegation — a group or body of delegates: Our club sent a delegation to the rally.
- turbine blade — any of a number of bladelike vanes assembled around the periphery of a turbine rotor to guide the steam or gas flow
- ultrawideband — a transmission technique using a very wide spectrum of frequencies that enables high-speed transfer of data
- umbrella bird — any of several large trogons of the genus Cephalopterus, of Central and South America, as C. ornatus, having an umbrellalike crest above the head.
- undeliverable — capable of delivery.
- undescribable — to tell or depict in written or spoken words; give an account of: He described the accident very carefully.
- undiagnosable — unable to be diagnosed
- undiscernable — capable of being discerned; distinguishable.
- undiscussable — to consider or examine by argument, comment, etc.; talk over or write about, especially to explore solutions; debate: to discuss the proposed law on taxes.
- undisguisable — to change the appearance or guise of so as to conceal identity or mislead, as by means of deceptive garb: The king was disguised as a peasant.
- unestablished — not established.
- unmedicinable — not able to be treated with medicine
- unmetabolised — not metabolised
- unmetabolized — not metabolized
- unobliterated — to blot out or render undecipherable (writing, marks, etc.); efface.
- unpredictable — not predictable; not to be foreseen or foretold: an unpredictable occurrence.
- unpredictably — not predictable; not to be foreseen or foretold: an unpredictable occurrence.
- upgradability — an incline going up in the direction of movement.