ob-
Prefix
  1. (non-productive) Against; facing; a combining prefix found in verbs of Latin origin.
  2. (botany) Of a reversed shape.
Prefix
  1. (Internet, informal) Obligatory; prepended to the name of a topic being mentioned to avoid accusations of being off-topic.



This text is extracted from the Wiktionary and it is available under the CC BY-SA 3.0 license | Terms and conditions | Privacy policy 0.003
Offline English dictionary