Vocabulary 2--Ordinal Numbers

Ordinal numbers are so called because they specify a person's or thing's order or position in a set. Because they in some sense describe the thing to which they are attached, they are adjectives.

1st—пе́рвый

2nd—второ́й

3rd—тре́тий

4th—четвёртый

5th—пя́тый

6th—шесто́й

7th—седьмо́й

8th—восьмо́й

9th—девя́тый

10th—деся́тый

11th—оди́ннадцатый

12th—двена́дцатый

13th—трина́дцатый

14th—четы́рнадцатый

15th—пятна́дцатый

16th—шестна́дцатый

17th—семна́дцатый

18th—восемна́дцатый

19th—девятна́дцатый

20th—двадца́тый

21st—два́дцать пе́рвый

30th—тридца́тый

40th—сороково́й

50th—пятидеся́тый

60th—шестидеся́тый

70th—семидеся́тый

80th—восьмидеся́тый

90th—девяно́стый

100th—со́тый

200th—двухсо́тый

300th—трёхсо́тый

400th—четырёхсо́тый

500th—пятисо́тый

600th—шестисо́тый

700th—семисо́тый

800th—восьмисо́тый

900th—девятисо́тый

1000th—ты́сячный

1001th—ты́сяча пе́рвый

Most ordinals starting at 21st consist of a cardinal part and an ordinal part between 1st and 19th, just like in English. For example, 21st is два́дцать пе́рвый (twenty first).

Ordinal numbers, like all Russian adjectives, agree with their nouns in gender, number and case. They are shown here in masculine, nominative, singular form. Except for the ones ending in a three they are declined like hard adjectives (like но́вый). When an ordinal has an initial cardinal part, only the ordinal part is declined.