Recently, I found a cool website, http://www.mnemonicdictionary.com, which helps you building your vocabulary using Mnemonics Techniques.
Mnemonics are techniques to encode difficult-to-remember information in a way that is much easier to recall after long time. To put it simply, mnemonics are memory aids that help make a connection between what you already know, something which is easy to remember and what you need to remember.For e.g:
Caulk , which means ‘to make watertight’ can be remembered using following memonic — caulk sounds like cork which makes bottles watertight
Onus (meaning: burden); Mnemonic — ON-US you are ON US ie. you are burden to me,