1. (Proper Adj.-Neuter) The upper part of a stream/river; toward the source or against the current. নৈৰ উত্সৰ দিশে বা ওপৰ ফাল; সোঁতৰ বিপৰীত ফাল ৷

English: upstream,
Assamese: উজনি, উজান,
Mising: dagdunng,
Karbi: langmang

Antonyms:

a. Proper Adj.-Neuter: downstream, নামনি, ভটীয়নি, ভাটী, dagtog...

2. (Adverb) in the opposite direction to the way water flows in a river; against the current; towards the source (of a river) নৈৰ পানীৰ সোঁতৰ বিপৰীতে; নদীৰ উৎসৰ ফাললৈ৷

English: upstream,
Assamese: উজনিমুৱা, উজনিমুৱাকৈ, উজাই,
Karbi: langthak