# forest

/ˈfɔɹəst/ (US) · /fˈɒɹɪst/ (UK)

Source: https://englishreference.com/word/forest
Updated: 2026-08-15

## Senses

### 1. area of trees

noun · CEFR A2

a large area of land where many trees grow close together.

For teachers: a large, dense tract of land covered with trees and undergrowth, typically larger and more wild than a wood.

- We spent the whole afternoon walking along the narrow paths in the forest.
- The ancient forest provides a vital habitat for several endangered species that cannot survive in smaller, fragmented woodlands.

### 2. computing networks

noun · CEFR C1 · Technical

a group of computer networks or domains that are managed together.

For teachers: a collection of one or more domain trees that share a common logical structure, directory schema, and network configuration.

- The IT department had to merge two different forests after the companies joined together.
- Administrators must ensure that schema extensions are replicated across the entire forest to maintain directory consistency between child domains.

### 3. graph theory

noun · CEFR C2 · Technical

a collection of 'trees' in math or data, where no paths loop back to the start.

For teachers: an undirected graph in which any two vertices are connected by at most one path; a disjoint union of trees.

- In this data model, the forest consists of three separate trees with no cycles.
- The algorithm efficiently identifies the spanning forest within a graph that contains multiple disconnected components.

### 4. to plant trees

verb · CEFR C1 · Formal

to cover an area of land with trees.

For teachers: to convert a tract of land into forest, especially by planting trees on a large scale.

- The government plans to forest the abandoned hillsides to prevent soil erosion.
- Environmental agencies have proposed a long-term initiative to forest the region, aiming to sequester carbon and restore local biodiversity.

Usage: The verb is transitive and requires a direct object.

## Examples

- We went for a long walk in the forest.
- The local government is planting new trees to protect the forest from disappearing.
- Conservationists argue that preserving the ancient forest is vital for maintaining regional biodiversity and sequestering carbon dioxide from the atmosphere.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.