Gender Tips: Masculine, Feminine or Neuter?

Masculine

Usually (but not always) nouns ending in: -ant, -er, -ich, -ig, -ing, -ismus, -ist, -or e.g. der Staubsauger

Feminine

Usually (but not always) nouns ending in: -e, -heit, -ik, -in, -ion, -keit, -schaft, -ung e.g. die Heizung

Neuter

Usually (but not always) nouns ending in: -chen, -lein, -um e.g. das Mädchen