My illusive pran-bondhu!
Bangla: Aashique, bondhu, dewana, kaala/kaaliya, koinna, manik, mashooque, mitro, moni, mothi, moyna, nath, prano-nath, premik, priye, priyothoma, raii, rongeela, roshik, roshiya, roshomothi, ruposhi, rothon, shaam, shai, shathi, shojoni, shokhi, shujon, etc.
English: Babe, baby, beau, darling, dear, honey, love, lover, sugar, suitor, sweetheart, sweetie, etc.
Hindi: Aashique, aawara, baalma, deewana, dilbar, dildaar, dilher, dil-jaana, dilruba, dost, dulara, gulfam, gulzaar, hamdam, hamnashi, hamnava, hamsafar, harjai, hasina, jaan, jaanu, janam, mashooque, mastana, mehbooba, meherbaan, mitwa, parwana, piya,saajan/saajni etc. Of course, people sometimes use the same word to refer to different people. A mother, for example, may use the word 'love' to call her little child, but she may also use the same word to refer to her husband. Bauls on the other hand, usually refer to the Creator as their friend. Here are two lines from a song by Baul Shah Abdul Karim:
Tumar hathe kolom re bondhu, tumar hathe lekho Ami kemne hoilam dushi bujhina shei pak-o Khujiya pailam na re bondhu, O-re bondhu tumi kuthai thako.