Liam
Before you invest in anything you need to find out what an exchange is and what distributions are!
Exchange = stock exchange. Vanguard ETFs in Europe (for example VEUR) can be bought off the Amsterdam exchange in euros, the London stock exchange in pounds, or the Swiss exchange in francs. Same basket of stocks, just a different trading currency.
Distributing ETFs distribute dividends. If the price of a VEUR share on Monday is 27.50 euro and on Tuesday it distributes a 50 cent dividend, the share price will fall to 27 euro but you will receive the 50 cents as a cash dividend, which may be subject to tax.
An accumulating ETF doesn't distribute dividends, so your 27.50 will remain as 27.50. This may be tax-advantageous.