קטיגוריות אליהן שייכות "כן" ו"לא"
רוב תודות.
עכשיו, כשנתת לי כיוון חיפשתי הלאה, ומצאתי מלוא הטנא וריאציות ודעות שונות ומשונות. באמת הגיע הזמן שהלשונאים ישבו לשתות קפה עם עוגת גבינה ויניחו לשטויות..
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According to ODO (yes, no), they are being used as exclamations which are presumably the same as interjections. Webster (yes, no) and Macmillan (yes, no), on the other hand, reckon that they areadverbs. Wiktionary (yes, no) chucks another spanner by stating that yes is being used as anadverb while no is being used as an interjection. Wikipedia: The words yes and no are not easily classified into any of the eight conventional parts of speech. Although sometimes classified asinterjections, they do not qualify as such, and they are not adverbs.