helmet; hard hat; protective headgear
gas mask; air-purifying respirator
round; circular; curved; smooth; harmonious; calm
glasses; eyeglasses; spectacles; judgment; judgement; discrimination
mouth; opening; hole; mouth (of a bottle); spout; gate; door
previously; before; first; before (something or someone else); beforehand; in advance
to hang; to suspend; to dangle; to swing; to carry
to be seen; to be in sight; to look; to seem; to come
-ish; -like; resembling; appearing to be; seeming to be
group; crowd; flock; herd; bevy; school
gate; branch of learning based on the teachings of a single master; division; phylum; counter for cannons
to open (a door, etc.); to unwrap (e.g. parcel, package); to open (for business, etc.); to empty; to remove; to move out; to clear out
to enter; to go into; to break into; to join; to enroll; to contain; to hold
to go; to move (in a direction or towards a specific location); to proceed; to take place; to pass through; to come and go; to walk
for a moment; for a minute; for a while; for some time; for the time being; for now
distinction; difference; separate; different; exception; exclusion
body; group; party; gang; troupe; troop
to stop (moving); to come to a stop; to stop (doing, working, being supplied); to come to a halt; to alight; to perch on
to appear; to come in sight; to become visible; to be expressed (e.g. emotions); to become apparent (e.g. trends, effects)
purpose; goal; aim; objective; intention
intelligence gathering; information gathering
going ahead; going first; preceding; coming before; scoring first; getting off to a lead
to differ (from); to vary; to not be in the usual condition; to not match the correct (answer, etc.); to be different from promised; isn't it?
inspection (e.g. customs, factory); examination; scan (e.g. MRI, PET, etc.)
utensil; implement; tool; instrument; appliance; apparatus
to hang; to suspend; to lower; to reduce; to demote; to move back
notebook; copy-book; note; noting down; (musical) note; laptop (computer)
record; minutes; record (e.g. in sports); results; to record; to document
commander; commanding officer; CO
seeming ...; appearing ...; -ish; like a ...; typical of ...
origin; source; base; basis; cause; ingredient; material
to come along; to come around; to turn up; to arrive at the present; to get where one is; to have been doing something (for a period of time)
(face) mask; (facial) features; looks; mask (e.g. for circuit etching)
across; over; beyond; throughout (a period of time); for
extinction; annihilation; destruction
to be (animate); to be; to be ..ing; to (have the audacity to) do
man; male; masculine gender
(prison) inmate; detainee; internee; in-patient (hospital); resident (institution)