As a Verb or Adjective:
1. To be something that is easily seen, noticed, or recognised. English = (be) obvious, (be) plain, (be) evident.
2. To be something that you expect people to know already. English = (be) obvious, (be) clear.
Interactive:
1. Used alone in response to your addressee's comments to mean that you think what they have said is something that is easily see, noticed, or recognised. English = 'Obviously!', 'Plainly!', 'Evidently!'
2. Used alone in response to your addressee's comments to mean that you think what they have said is something that you expect everyone to know already. English = 'Obviously!', 'Clearly!'
As Modifier:
1. Used at the beginning or end of a sentence to mean what is said in the sentence is easily seen, noticed, or recognised. English = obviously, plainly, evidently.
2. Used at the beginning or end of a sentence to mean that what you are stating is something that you expect people to know already. English = obviously, clearly.