a soft fatty substance in the cavities of bones, in which blood cells are produced (bone marrow), the inmost or essential part, a vegetable with a long, narrow, green fruit that is used cooked as a marrow or unripe as a vegetable

to the marrow, cut to the marrow, in the marrow of one's bones

bone marrow, marrow of the problem, marrow vegetable

Formal and Informal Expressions of marrow

In different contexts, you can replace 'marrow' with suitable alternatives. In a more formal setting, 'essence, core' is apt. In informal speech or writing, 'heart, guts' is a commonplace synonym.

marrow: Explore its Definition & Usage

marrow Definition

1a soft fatty substance in the cavities of bones, in which blood cells are produced (bone marrow)
2the inmost or essential part
3a vegetable with a long, narrow, green fruit that is used cooked as a marrow or unripe as a vegetable

Using marrow: Examples

Take a moment to familiarize yourself with how "marrow" can be used in various situations through the following examples!

Example
The bone marrow transplant was successful.
Example
The marrow of the problem lies in our lack of communication.
Example
She cooked stuffed marrow for dinner.
Example
The marrow of the book is its central theme.

marrow Synonyms and Antonyms

Synonyms for marrow

Antonyms for marrow

Idioms Using marrow

to the marrow
completely, to the very core
Example
The cold wind chilled her to the marrow.
cut to the marrow
get to the heart of the matter
Example
The professor cut to the marrow of the topic, leaving no room for confusion.
in the marrow of one's bones
deeply ingrained, to the very core of one's being
Example
She knew in the marrow of her bones that she had made the right decision.

Phrases with marrow

bone marrow
a soft fatty substance in the cavities of bones, in which blood cells are produced
Example
The bone marrow transplant was successful.
marrow of the problem
the most important or essential part of a problem
Example
The marrow of the problem lies in our lack of communication.
marrow vegetable
a vegetable with a long, narrow, green fruit that is used cooked as a marrow or unripe as a vegetable
Example
She cooked stuffed marrow for dinner.

Origins of marrow

from Old English 'mearg', related to Dutch 'merg' and German 'Mark'

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Summary: marrow in Brief

The term 'marrow' [ˈmærəʊ] refers to three distinct meanings. Firstly, it denotes the soft fatty substance in the cavities of bones, where blood cells are produced. Secondly, it refers to the inmost or essential part of something, as in 'The marrow of the book is its central theme.' Lastly, it is a vegetable with a long, narrow, green fruit that is used cooked as a marrow or unripe as a vegetable. The idioms 'to the marrow,' 'cut to the marrow,' and 'in the marrow of one's bones' all convey a sense of depth and completeness.