Pronunciation: [nˈə͡ʊ fɹɒm] (IPA) 
The spelling of the word "know from" can be explained with the IPA phonetic transcription /noʊ frʌm/. The "k" in "know" is not pronounced, as it is a silent letter. The "o" is pronounced as the long vowel sound /oʊ/. The word "from" begins with the consonant cluster /fr/, and the "o" is pronounced as the short vowel sound /ʌ/. Overall, the spelling of "know from" reflects the sound of the words in spoken English.
"Know from" is a phrase commonly used to describe the process of recognizing, understanding, or identifying someone or something based on familiarity or prior knowledge. It refers to the ability to differentiate or distinguish someone or something due to previous encounters, experiences, or acquired information.
In various contexts, "know from" can encompass different aspects:
1. Recognition of individuals: It is about remembering or identifying someone based on characteristics, appearances, or personal interactions. For instance, one may say, "I know him from his distinct voice" or "I know her from that distinctive hairstyle."
2. Familiarity with places or things: This refers to recognizing or being familiar with a particular location, object, or concept due to previous knowledge or experience. For example, someone might say, "I know this city from my previous visits" or "I know a good book from its cover."
3. Identification through information or sources: It is related to the ability to identify or differentiate something by using information or knowledge acquired from a certain source or reference. For instance, one may say, "I know this fact from a reputable scientific study" or "I know this quote from a famous author."
Overall, the phrase "know from" implies the ability to recognize, differentiate, or understand someone or something based on previous knowledge, familiarity, or acquired information.
The phrase "know from" is not a word in and of itself, but rather a combination of two separate words: "know" and "from".
The word "know" can be traced back to the Old English word "cnawan", which means "to perceive or recognize". This Old English word evolved into the Middle English word "knowen" and eventually became the modern English word "know".
On the other hand, the word "from" comes from the Old English word "fram", which means "from" or "out of". This Old English word also influenced the Middle English word "from", which retained its meaning of representing origin or starting point.
So, when combined together, the phrase "know from" implies recognizing or being familiar with something that stems or originates from a particular source or place.
