Synonyms for Esophagus:

n.

belly, bile duct, abdominal, bile, throat, appendix, bladder, alimentary canal. body (noun)
oesophagus, gorge, gullet.
esophagus (noun)
oesophagus, gorge, gullet.
gullet (noun)
gullet.
throat (noun)
throat, gorge, gullet.
vocal cords (noun)
throat.

Other synonyms:

neck
throat.
Other relevant words:
gorge, abdominal, bile, bladder, appendix, belly, throat.