I would like to start with oral speech. Oral speech is sounding speech that functions in the sphere of direct communication, and in a broader sense, it is any sounding speech. Historically, the oral form of speech is primary, it arose before writing. The material form of oral speech is made up of sound waves, i.e. pronounced sounds, which are the result of the complex activity of the human pronunciation organs. This phenomenon is associated with the rich intonation capabilities of oral speech. Intonation is created by the melody of speech, intensity (loudness) of speech, duration, increase or deceleration of the tempo of speech and the timbre of pronunciation. In oral speech, the place of logical stress, the degree of clarity of pronunciation, the presence or absence of pauses play an important role. Oral speech has such an intonational variety of speech that it can convey all the richness of human feelings, experiences, moods, etc. Perception of oral speech during direct communication occurs simultaneously through the auditory and visual channels. Therefore, oral speech is accompanied, enhancing its expressiveness, by such additional means as the nature of the gaze (alert or open, etc.), the spatial location of the speaker and listener, facial expressions and gestures. So, a gesture can be likened to an indicative word (pointing to an object), can express an emotional state, agreement or disagreement, surprise, etc., serve as a contact establishing means, for example, a raised hand as a sign of greeting (while gestures have a national -cultural specifics, so use them, especially in oral business and scientific speech, you need to be careful). All these linguistic and extralinguistic means contribute to an increase in the semantic significance and emotional saturation of oral speech. Written speech is a person's ability to write and read.

and also, Speech is the ability to speak, express, convey something in words - orally or in writing.

Oral speech is a person's ability to speak and listen, a person's ability to pronounce words with the help of the tongue, lips, mouth. with the help of reading we read, and with the help of oral speech we say what we have read