🎖️ A service stripe #️⃣ The # sign

hash mark

2.8

The sign '#' used before words to make hashtags and on phone keypads

noun
/hæʃ mɑrk/

Texting

: numeral

The teacher asked the students to put a hash mark next to each correct answer on the quiz.

Examples

Please add a hash mark before the number when you're citing the reference in your report.
So here we have Y with two hash marks, which means we're going to have R-squared.
So that will happen when first of all, both white players should have just returned a hash mark and then hashtag if you prefer.
The easiest thing for me to remember is to just count the hash marks on the YS.
And it's, it's done by using a lot of little dots or little hash marks of similar colors, but not really blending.
In her social media posts, she often uses the hash mark to categorize topics with hashtags.

Synonyms

hash

vshash mark

Texting

5 3.5

The symbol '#' placed before a word to mark a topic on social media

is the broader name also used for numbers and technical uses

octothorpe

vshash mark

1 9.9

A sign shown as # used on phones and social media

is the common term rather than the rare technical name

pound sign

vshash mark

Texting

2.7

A symbol # used to mark numbers or make tags on social media

is the neutral term used in computing, telephony, and social media

Surface Forms

hash mark singular

hash marks plural

# singular

Morphology

hash + mark

The compound is directly compositional: 'hash' names the '#' symbol and 'mark' means a sign or notation, so a learner who knows both constituents can infer it refers to the '#' symbol used as a mark. This noun+noun naming pattern for symbols is common and cross-linguistically transparent, so the meaning is immediately derivable from the parts.

Etymology

Hash mark is the name for the sign #, which looks like crossed lines or a small grid. People used this mark to mean a 'number' and, later, to make a 'hashtag' online, so today hash mark means the '#' sign used on phones, social media, and in computer messages.