base (of a plant, tree, pillar, etc.); (part near the) root; roots (of one's hair); root (e.g. of a problem); source
comprehension; consent; understanding; OK; roger (on two-way radio)
in swarms; in clusters; tediously; slowly
parking on the streets; on-street parking
vigilance; caution; alertness; precaution; being on guard
to be embarrassed; to lose face
useless; no future in it; doesn't make sense; having no point
to save face; to show deference; to make someone look good
to send (someone) back; to send (someone) home
thirteen; 13; king (playing card)
hour; o'clock; (specified) time; when ...; during ...
waiting room; anteroom; antechamber; green room
to slip out; to sneak away; to break into the lead; to get ahead; to begin to fall out (e.g. hair); to break out (of a loop)
heart; guts; nerve; central part
to begin (doing); to start (doing)
trump card; ace up one's sleeve; secret weapon
promotional model (at a trade show, etc.); female guide (at a convention); hostess (of a party, banquet, etc.); companion
aspiration; volunteering; desire; application
(game pieces, soldiers, etc.) under one's control
pedestrian crossing; crosswalk
restless; fidgety; lively; busy
turnaround (e.g. at the end of a driveway)
simultaneous; concurrent; same time; synchronous; together
oh!; good heavens!; ugh!; oh no!; ah!; the penny drops!
deep voice; rich voice; full voice
to check; to hold back; to keep at bay; to stop; to prevent; to stem
rear; rear unit guard; anchor (man)
whole; entirety; whatever (is the matter)
to pass (a car); to overtake; to surpass; to outstrip; to outdistance
green tract of land; green space