| Idiom / Phrase | Meaning | Example Sentence |
|---|---|---|
| Keep up appearances | to maintain outward show | Though he is in financial crises, he is able to keep up appearances. |
| Kick one's heels | to waste time in waiting | As the train was late we had to kick our heals at the station. |
| Kith and kin | blood relation | If we have no love for our kith and kin, we cannot be expected to love humanity. |