CFDs are a leverage product and can involve a significant risk of loss. Trading CFDs may not be suitable for all, therefore you should ensure that you understand the risks involved and take into account your individual circumstances.
Trader's Glossary

What is Reversal?

A reversal is a complete change in the direction of a trend. If a security is trending upwards, then a reversal marks the beginning of a downward trend. If it is trending downwards then a reversal marks the beginning of a new upward trend. Reversals tend to be more sustained than pullbacks or retracements.