| wave(noun, action, act, movement, mark) |
| wavering(noun, action, act, movement, sign) |
| whistle(mark, light, sign, alert, cry) |
| white flag |
| wigwag |
| wigwag flag |
| yellow flag |
| yellow jack |
| acceptance(noun, understanding, respect, credit, acknowledgment) |
| acknowledging(noun, understanding, respect, credit, acknowledgment) |
| acknowledgment(noun, understanding, respect, credit, thanks) |
| admission(noun, understanding, respect, credit, acknowledgment) |
| alarm bell(expression, warning, bell, siren) |
| allowance(noun, understanding, respect, credit, acknowledgment) |
| apperception(noun, understanding, respect, credit, acknowledgment) |
| appreciation(noun, understanding, respect, credit, acknowledgment) |
| appreciation given(noun, expression, respect, credit, acknowledgment) |
| apprehending(noun, understanding, respect, credit, acknowledgment) |
| approval(noun, respect, credit, acknowledgment, thanks) |
| assimilation(noun, understanding, respect, credit, acknowledgment) |