# Glossary ❖ - **Predictor**: - Algorithm used to predict a suggestion. - **Prediction Model**: - Database used to supplement a predictor. Can be trained from search query input data. - **Markov Chain**: - Stochastic prediction model describing a sequence of possible words where the probability of each word depends only on the previous word. - **Markov Chain Predictor**: - Predictor utilising a Markov chain.