| Words | Parts of Speech | Meaning/Definition/Similar Words |
|---|---|---|
| semaphore | noun | A signal telegraph; an apparatus for giving signals by the disposition of lanterns, flags, oscillating arms, etc. |
| sematrope | noun | An instrument for signaling by reflecting the rays of the sun in different directions. |
| semblable | adjective | Like; similar; resembling., Likeness; representation. |
| semblably | adverb | In like manner. |
| semblance | adjective | Seeming; appearance; show; figure; form., Likeness; resemblance, actual or apparent; similitude; as, the semblance of worth; semblance of virtue. |
| semiology | noun | The science or art of signs., The science of the signs or symptoms of disease; symptomatology., The art of using signs in signaling., Alt. of Semiological |
| semeiotic | adjective | Alt. of Semiotic |
| semiotics | noun | Semeiology., Same as Semeiotics. |
| semiangle | noun | The half of a given, or measuring, angle. |
| semibreve | noun | A note of half the time or duration of the breve; — now usually called a whole note. It is the longest note in general use. |
| semibrief | noun | A semibreve. |
| semicolon | noun | The punctuation mark [;] indicating a separation between parts or members of a sentence more distinct than that marked by a comma. |
| semifable | noun | That which is part fable and part truth; a mixture of truth and fable. |
| semifluid | adjective | Imperfectly fluid., A semifluid substance. |
| semihoral | adjective | Half-hourly. |
| semilunar | adjective | Shaped like a half moon., The semilunar bone. |
| semimetal | noun | An element possessing metallic properties in an inferior degree and not malleable, as arsenic, antimony, bismuth, molybdenum, uranium, etc. |
| semiimute | adjective | Having the faculty of speech but imperfectly developed or partially lost. |
| seminated | imp. & past participle | of Seminate |
| seminific | adjective | Alt. of Semnifical |
| seminoles | noun pl. | A tribe of Indians who formerly occupied Florida, where some of them still remain. They belonged to the Creek Confideration. |
| seminymph | noun | The pupa of insects which undergo only a slight change in passing to the imago state. |
| semiovate | adjective | Half ovate. |
| semipagan | adjective | Half pagan. |
| semipedal | adjective | Containing a half foot. |
| semiplume | noun | A feather which has a plumelike web, with the shaft of an ordinary feather. |
| semiproof | noun | Half proof; evidence from the testimony of a single witness. |
| semi pupa | noun | The young of an insect in a stage between the larva and pupa. |
| semisolid | adjective | Partially solid. |
| semisteel | noun | Puddled steel. |
| semitonic | adjective | Of or pertaining to a semitone; consisting of a semitone, or of semitones. |
| semivocal | adjective | Of or pertaining to a semivowel; half cocal; imperfectly sounding. |
| semivowel | noun | A sound intermediate between a vowel and a consonant, or partaking of the nature of both, as in the English w and y., The sign or letter representing such a sound. |
| semolella | noun | See Semolina. |