| OB | an organism that cannot grow in the presence of oxygen |
|---|---|
| OB | caused by law or conscience to follow a certain course |
| OB | the social force that binds you to your obligations and the courses of action demanded by that force |
| OB | a legal agreement specifying a payment or action and the penalty for failure to comply |
| OB | a personal relation in which one is indebted for a service or favor |
| OB | the state of being obligated to do or pay something |
| OB | relating or constituting or qualified to create a legal or financial obligation |
| OB | a part of the score that must be performed without change or omission |
| OB | a persistent but subordinate motif |
| OB | in a manner that cannot be evaded |
| OB | in an obligatory manner |
| OB | morally or legally constraining or binding |