# NAS

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

## Senses

### 1. computer storage

noun · CEFR B2 · Technical

Stands for Network-Attached Storage. It is a hard drive or server connected to a network that lets multiple people store and share files.

For teachers: Abbreviation for Network-Attached Storage. Refers to a file-level computer data storage server connected to a computer network providing data access to a heterogeneous group of clients.

- We bought a 4-terabyte NAS to back up all our family photos and videos.
- The IT department recommended installing a redundant NAS to ensure that all project files remain accessible even if one drive fails.

Usage: Usually functions as a countable noun when referring to the hardware unit.

### 2. scientific organization

noun · CEFR C1 · American English · Formal

Stands for National Academy of Sciences. This is a famous American group of top scientists who give advice to the government.

For teachers: Abbreviation for National Academy of Sciences. A private, non-profit society of distinguished scholars engaged in scientific and engineering research in the United States.

- She was honored to be elected as a member of the NAS for her work in physics.
- The NAS issued a comprehensive report advising the federal government on the long-term implications of climate change for coastal infrastructure.

### 3. military base

noun · CEFR C1 · Technical

Stands for Naval Air Station. It is a military airport used by a navy.

For teachers: Abbreviation for Naval Air Station. A military airbase maintained by a navy, typically supporting carrier-based aircraft operations.

- The pilot landed his jet at the NAS after the training mission.
- The strategic importance of the NAS has increased significantly due to its proximity to the disputed maritime borders.

## Examples

- The office NAS shares files between all the desks.
- Our company uses a secure NAS to store employee records locally.
- The university upgraded its NAS infrastructure to handle the increased data traffic from remote students during the pandemic.

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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.