gene Some people have genes that may put them at risk for cancer. glide A huge eagle glided over the area, looking for prey. goods As of next month, there will be tax increases on a wide range of goods. grammar English grammar is difficult to master without years of study. grammatical The grammatical/grammar errors you made in your composition could have been avoided if you had been more careful. habitual He used to be a habitual smoker. The habitual thief was finally arrested by the police. harden