Select the option that can be used as a one-word substitute for the given group of words.
Understanding "Eternal: Lasting Forever or Indefinitely"
The question asks us to find a single word that means "Eternal; lasting forever or indefinitely." This phrase describes something that has no end in time, continuing without limit or for an extremely long period.
Analyzing the Options for Eternal and Lasting Forever
Let's look at each option provided and understand its meaning:
- Peristyle: This word refers to a row of columns surrounding a space within a building, such as a court or internal garden, or surrounding a building on the outside. It relates to architecture, not duration.
- Perpetual: This word means never ending or changing; occurring repeatedly in such a way as to seem never ending. It is synonymous with eternal, lasting forever, or indefinite.
- Perplex: This word means to make someone feel completely baffled or confused. It relates to a state of mind, not duration.
- Permissive: This word means allowing or characterized by great or excessive freedom of behavior. It relates to rules or attitudes, not duration.
Selecting the Best Substitute for Eternal
Comparing the definitions of the options with the meaning of "Eternal; lasting forever or indefinitely," we can see that the word Perpetual is the only one that accurately captures the idea of something lasting forever or indefinitely.
Therefore, Perpetual is the best one-word substitute for the given group of words.
| Option | Meaning | Matches "Eternal; lasting forever or indefinitely"? |
|---|---|---|
| Peristyle | Row of columns | No |
| Perpetual | Never ending, lasting forever | Yes |
| Perplex | Confuse or baffle | No |
| Permissive | Allowing great freedom | No |
Revision Table: Key Vocabulary
| Word | Definition | Example Use |
|---|---|---|
| Eternal | Lasting or existing forever; without end. | The concept of an eternal soul. |
| Perpetual | Never ending or changing; occurring repeatedly in such a way as to seem never ending. | The perpetual motion of the tides. |
| Indefinite | Lasting for an unknown or unstated length of time. | The project has been postponed indefinitely. |
| Finite | Having limits or bounds; not infinite. | Life is finite. |
Additional Information on Words Meaning Forever
Understanding words related to time and duration is important for vocabulary building. While "eternal" and "perpetual" are very close in meaning, especially in this context, other words can also convey the idea of something long-lasting or endless, depending on the nuance.
- Everlasting: Similar to eternal, meaning lasting forever or a very long time.
- Infinite: Without limits; endless in space, extent, or size; impossible to measure or calculate. Sometimes used for time, but more often for space or quantity.
- Ceaseless: Constant and unending. Often used for actions or sounds, like "ceaseless rain."
The term "indefinitely" implies a duration that is not fixed or determined, which can sometimes mean forever in a theoretical sense, or simply for a period whose end is unknown. In the context of the phrase "lasting forever or indefinitely," both possibilities point towards something that doesn't have a clear end.
Important Questions from Miscellaneous
A stone is thrown horizontally from the top of a 20 m high building with a speed of 12 m/s. It hits the ground at a distance R from the building. Taking g = 10 m/s2 and neglecting air resistance will give :
A sphere of volume V is made of a material with lower density than water. While on Earth, it floats on water with its volume f1V (f1 < 1) submerged. On the other hand, on a spaceship accelerating with acceleration a < g (g is the acceleration due to gravity on Earth) in outer space, its submerged volume in water is f2V. Then:
A railway wagon (open at the top) of mass M1 is moving with speed v1 along a straight track. As a result of rain, after some time it gets partially filled with water so that the mass of the wagon becomes M2 and speed becomes v2. Taking the rain to be falling vertically and the water stationery inside the wagon, the relation between the two speeds v1 and v2 is :
Consider the following statements:
1. Distance between the longitudes becomes zero on North Pole and South Pole.
2. Distance between the longitudes is maximum on the Equator.
3. Number of longitudes is more than number of latitudes.
Which of the statements given above is/are correct?
One block of 2⋅0 kg mass is placed on top of another block of 3⋅0 kg mass. The coefficient of static friction between the two blocks is 0⋅2. The bottom block is pulled with a horizontal force F such that both the blocks move together without slipping. Taking acceleration due to gravity as 10 m/s2, the maximum value of the frictional force is :
