ob-
- Prefix. (context, non-productive) Against; facing; a combining prefix found in verbs of Latin origin.
- Prefix. (botany) Of a reversed shape.
- Prefix. (internet, informal) Obligatory; prepended to the name of a topic being mentioned to avoid accusations of being off-topic.
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This entry was last updated on RefTopia from its source on 3/20/2012.