| OB | an elevated post affording a wide view |
|---|---|
| OB | a station set up for making observations of something |
| OB | a structure commanding a wide view of its surroundings |
| OB | relying on observation or experiment |
| OB | a structure commanding a wide view of its surroundings |
| OB | a building designed and equipped to observe astronomical phenomena |
| OB | observe correctly or closely |
| OB | make mention of |
| OB | observe with care or pay close attention to |
| OB | discover or determine the existence, presence, or fact of |
| OB | watch attentively |
| OB | follow with the eyes or the mind |