ignore, neglect, overlook 都有"忽略"的意思。

ignore v.忽视，不理睬，指有意识地拒绝。

She saw him coming but she ignored him.她看见他走过来，但是装作没看见。

neglect v.忽视，忽略，疏忽，指无意识地忽视或忘记。

He neglected to make repairs in his house.他忘记了修理房子。

overlook v.忽略，疏漏，指有意识地遗漏，也指无意识地忽略。

The mother overlooked her little boy's bad behavior.那位母亲忽视了她的小儿子的不良行为。