| HAL | a large entrance or reception room or area |
|---|---|
| HAL | a college or university building containing living quarters for students |
| HAL | a large building for meetings or entertainment |
| HAL | a large room for gatherings or entertainment |
| HAL | a large building used by a college or university for teaching or research |
| HAL | an interior passage or corridor onto which rooms open |
| HAL | the large room of a manor or castle |
| HAL | a large and imposing house |
| HAL | United States astronomer who discovered Phobos and Deimos (the two satellites of Mars) (1829-1907) |
| HAL | United States explorer who led three expeditions to the Arctic (1821-1871) |
| HAL | United States chemist who developed an economical method of producing aluminum from bauxite (1863-1914) |
| HAL | United States child psychologist whose theories of child psychology strongly influenced educational psychology (1844-1924) |