| serendipitous |
having happened or having been discovered purely by happy accident. |
| serendipity |
lucky coincidence or accidental discovery of something pleasant or valuable. [2 definitions] |
| serene |
free from trouble or disturbance; unruffled; tranquil. [3 definitions] |
| serenity |
the condition or quality of being untroubled, peaceful, or tranquil. |
| serf |
in feudal societies, a person who is held in servitude on a lord's land and who may be sold or otherwise transferred with the land. [2 definitions] |
| serge |
a sturdy suiting material with a diagonal weave. |
| sergeant |
in the U.S. Army, Marine Corps, or Air Force, any of several ranks of noncommissioned officers above the rank of corporal or airman first class. [4 definitions] |
| sergeant at arms |
an officer whose primary duty is to keep order in a legislature, court, social club, or the like. |
| sergeant first class |
in the U.S. Army, a noncommissioned officer who ranks above a staff sergeant and below a master sergeant. |
| sergeant major |
in the U.S. Army and Marine Corps, a noncommissioned officer of the highest rank. [3 definitions] |
| serial |
a work published, produced, or broadcast in regular installments. [4 definitions] |
| serialize |
to write, put, or publish (a story or the like) in serial form. [2 definitions] |
| serial number |
a number that is one of a series and is assigned to someone or something for identification, as to a soldier, automobile, or piece of paper currency. |
| seriatim |
in series; one after another. |
| series |
a group of related events, works, or objects that come one after another in sequence or are arranged in a particular order on the basis of a common characteristic. [2 definitions] |
| serif |
in typography, any of the extra-fine lines or extensions of lines that are added to the main strokes in some styles of type. (Cf. sans serif.) |
| serigraph |
a color print made by silk-screening. |
| serine |
a nonessential amino acid found in many proteins. |
| seriocomic |
serious and comical at the same time, as a novel or play. |
| serious |
marked by careful, weighty thinking. [6 definitions] |
| seriously |
with careful thought or consideration, esp. with regard to the consequences, urgency, or truth of a matter. [4 definitions] |