a funeral song or tune, or one expressing mourning in commemoration of the dead.

any composition resembling such a song or tune in character, as a poem of lament for the dead or solemn, mournful music

Tennyson's dirge for the Duke of Wellington.

a mournful sound resembling a dirge

The autumn wind sang the dirge of summer.

Ecclesiastical . the office of the dead, or the funeral service as sung.

noun

chant , coronach , cry , death march , death song , elegy , funeral song , hymn , jeremiad , keen , lament , march , monody , requiem , threnody , epicedium , poem , song , trental