1. the theoretical intrinsic rate of increase of a population, equivalent to the difference between the birth and death rates divided by the number of individuals in the population.

1. radius.
2. registered (def. 2).
3. resistance.
4. roentgen (def. 2).
5. royal.
6. ruble.
7. rupee.

1. the 18th letter of the English alphabet, a consonant.
2. any spoken sound represented by the letter R or r, as in ran, carrot, or rhyme.
3. something having the shape of R.
4. a written or printed representation of the letter R or r.
5. a device, as a printer's type, for reproducing the letter R or r.
6. three R's.

1. are: Oysters R in season.

1. restricted: a rating assigned to a movie by the MPA indicating that children under the age of 17 will not be admitted to a theater showing the film unless accompanied by an adult.

1. radical.
2. ratio.
3. regular: a man's suit or coat size.
4. resistance.
5. stage right.
6. roentgen.
7. rook.

1. the 18th in order or in a series.
2. the medieval Roman numeral for 80.
3. arginine.
4. universal gas constant.
5. written as superscript ® following a name registered with the U.S. Patent and Trademark Office.

1. rabbi.
2. railroad.
3. railway.
4. range.
5. rare.
6. received.
7. recipe.
8. replacing.
9. residence.
10. right.
11. rises.
12. river.
13. road.
14. rod.
15. royal.
16. rubber.
17. ruble.
18. run; runs.
19. rupee.

1. (in prescriptions) take.

1. rabbi.
2. Radical.
3. radius.
4. railroad.
5. railway.
6. (in South Africa) rand; rands.
7. Réaumur.
8. rector.
9. redactor.
10. regina.
11. Republican.
12. response.
13. rex.
14. river.
15. road.
16. royal.
17. ruble.
18. rupee.
19. stage right.

1. the 18th letter and 14th consonant of the modern English alphabet
2. a speech sound represented by this letter, in English usually an alveolar semivowel, as in red
3. See three Rs

1. radical
2. currency
• rand
• rupee
3. Réaumur temperature (scale)
4. resistance
5. roentgen or röntgen
6. rook
7. Royal
8. gas constant
9. (in the US and Australia)
• restricted exhibition (used to describe a category of film certified as unsuitable for viewing by anyone under the age of 18)
• (as modifier)

1. rare
2. recto
3. rod (unit of length)
4. ruled
5. run(s)

1. registered (trademark)
2. right
3. river
4. rouble

1. rabbi
2. rector
3. Regina
4. Republican
5. response (in Christian liturgy)
6. Rex
7. River
8. Royal

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