V. S. Apte, The Practical Sanskrit–English Dictionary. Look up any word of the Gita in Devanagari, IAST or Harvard-Kyoto, or browse the headwords letter by letter.
Entry वच
वचvacaA parrot.
[वच्-असुन् Uṇ.4.196]
A parrot.
The sun.
Derived forms and compounds
-चा
A kind of talking bird.
A kind of aromatic root (Marâthîवेखंड); Mb.13.131.8.