тридца́тка тридцатка

Meanings

1. someone in their thirties, a thirty-something
2. thirty, a group of thirty, route 30informal

Examples

• Ей уже тридцатка, но она выглядит моложе.
  She's already in her thirties, but she looks younger.
• Нам нужно собрать тридцатку подписей до завтра.
  We need to collect thirty signatures by tomorrow.