Greetings, Fiona, from across the pond but still within the Commonwealth!

I've just tripped over this interesting thread, and being a complete foodie and kitchenalia collector, though I might share a few great websites right here... I think you'll like them:
Indian Food Reference Guide & Glossary, alphabetical! 'Indian' (Hindi?) to English. A joy to my persnickety heart
Indian Spice Guide, where you'll actually see some differentiation between spice/herb leaves and seeds, though they have Coriander (we spell it with 1 R) Leaves as Hara Dhania and then just plain Coriander as Dhania (I assume seeds). This one is English to 'Indian'.

And then there's THIS fabulously useful Imperial to 'American' (and volume to mass/weight, etc.) conversions page, perfect for us Commonwealth and/or 'Colonial' types... as well as you 'Mother Country' types...
Weights & Measures Conversions & Translations

Enjoy, kitchen fiends!