#hydrology

• Downstream — The part of a watercourse located in the direction of the current, toward the mouth (as opposed to amonte); (adverbially) in the direction of the water flow; (in economics and law) a written personal guarantee, usually on a bill of exchange or promissory note, whereby a person (avalist) binds themselves to pay the mentioned amount if the primary debtor fails to fulfill their obligation.
• Bag — A proper geographical name of international origin, attributed to various locations, watercourses, or landmarks worldwide (such as the Bag River or minor global settlements), used as an invariable foreign toponym.
• Băiasa — A geographical proper name of Romanian origin designating watercourses, rugged mountain valleys, or terrain landmarks in the Carpathian space; it specifically refers to the Băiasa stream, a mountain tributary within the Olt river basin or other large rivers, located in regions with ancient pastoral and mining traditions.
• Balaleu — A local toponym and name of a river or small hydrographic basin within the Romanian territory; additionally, the term can identify villages, hamlets, or rural geographical landmarks of local importance, preserved in community memory through oral tradition or old cadastral maps. In a regional or archaic etymological sense, the word may be linked to old surnames or nicknames derived from the local dialect.