This is the 882nd most frequent Romanian word.
susținut
"Sustained" or "supported."
In this case, "susținută" is used as the past participle of "a susține" (to support) and describes the quality of being backed or supported.
Conferința a fost bine susținută de către organizatori.
The conference was well supported by the organizers.
Here, "susținut" is used as the past participle of the verb "a susține" (to claim), indicating the action of asserting or declaring.
El a susținut că proiectul va fi terminat la timp.
He claimed that the project would be finished on time.
Here, "a susținut" refers to giving or delivering a speech, another meaning of the verb "a susține".