This page has definitions of the most used terms on the website.
NB it is still under construction hence the small amount of content.
ETF (exchange-traded fund
An ETF (exchange-traded fund), is a security that tracks an index, commodity, bonds, or a basket of assets like an index fund. Fees are low for ETFs as they are trying to track the market rather than beat it.
ISA (Individual Savings Account)
An ISA (Individual Savings Account) is a tax-free way to save or invest. If you’re starting to think about saving or investing, ISAs could be a good place to begin.
gov.uk information on ISAs
Articles on ISAs