English Thai Dictionary - ดิกชันนารี พจนานุกรม อังกฤษไทย ไทยอังกฤษ. Features. English Dictionary / English Thai and Thai English Dictionary. Long-Touch to Speak/Pronounce Adjustable talking speed. Bookmark your favorite words, then bring them back easily. Search words. Set text size to suit a variety of different screens and resolutions.