| A | B |
|---|
| serenity | the quality of being calm, peaceful, or untroubled |
| sociable | enjoying the company of others; friendly |
| somber | very serious or sad |
| specimen | something that is studied by scientists as an example of an entire set of things |
| stamina | the power to resist fatigue or illness while working hard |
| subside | to become less active, intense, or agitated |
| swagger | to walk in a way that makes it look as if you think you are important |
| swarm | a large number of insects or other small creatures |
