Synonym: border, outskirts. Similar words: confront, in front of, the front line, confrontation, twentieth, on time, continue, continued. Meaning: ['frʌn'tɪr /-‚tɪə] 
n. 1. a wilderness at the edge of a settled area of a country 2. an international boundary or the area (often fortified) immediately inside the boundary 3. an undeveloped field of study; a topic inviting research and development.
n. 1. a wilderness at the edge of a settled area of a country 2. an international boundary or the area (often fortified) immediately inside the boundary 3. an undeveloped field of study; a topic inviting research and development. 
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151. Richard wished that he had lived in frontier days, but he can't turn back the clock.
152. Frederick Jackson Turner's famed 1893 work, "The Frontier Thesis, " was nostalgia for a past world: all of the new industries were concentrated in urban centers.
153. Photochromic materials are widely used in optical information storage, optical switching devices and optical switches and other frontier areas.
154. The effects industry is emerging as an exciting new frontier for mathematicians, one that uniquely combines mathematical insights with the art of moviemaking.
155. I fancied him to be an Indian chief, a 'red-skinned warrior' in the romantic frontier sagas of my childhood.
156. The recent inflow of capital has provided a cheaper source of credit for the development of frontier regions, but has also brought important know-how.
157. We are reaching out for a new and boundless frontier.
158. Mixing butter, red mineral pigments, and sometimes incense, Hamar women roll their hair into thick, ropey strands. See more photographs from the March 2010 feature story "Africa's Last Frontier."
159. I want to go to the lecture badly. It is about Frederick Jackson Turner and his research on the frontier.
160. Software delivery process automation and optimization is quite possibly the "final frontier" left for modernization in the software development lifecycle (SDLC).
161. The history of the frontier service provides a very important and hitherto unstudied example through which we can understand the changes that Christian missionary activities underwent in modem China.
162. Deeper in the desert, you can fossick for opals in the quirky underground town of Coober Pedy or in the frontier town of Andamooka.
163. The environmental radiochemistry is a new frontier discipline. So?it is very important to study the system of this subject.
164. Mainly includes: one is enlarges to the frontier trade development financial support dynamics.
165. Frontier trade is one of the special trade form between the adjacent countries, and is the important content of the foreign trade in a country.
166. The Los Angeles that greeted these pioneers who disembarked after their four-day train ride from the east was part boomtown, part frontier.
167. The tale of the building of the transcontinental railroad, the steel band that wed the metropolitan East to the frontier West, is among the greatest in American history.
168. The life of the Reindeer men was a frontier life.
169. The Wild West frontier arrest and treatment of DSK, the lynch-mob mood, the media orgy, and his public humiliation make the US look like a nasty third world state.
170. Or, as John Perry Barlow of the Electronic Frontier Foundation predicted last year: "We're going back to the city-state.
171. The submicroscopic domain , inhabited by elementary particles(http://sentencedict.com/frontier.html), is probably the most fundamental frontier of physics.
172. The Republicans believe that the wagon train will not make it to the frontier unless some of the old, some of the young, some of the weak are left behind by the side of the trail.
173. Behavioristic geography is a newly emerged branch of science, and also a frontier science between geography and psychology.
174. Some parameters such as molar refractivity, frontier orbit energy, dipole moment, atom net charge of triazines were obtained by using the method of quantum-chemistry calculation.
175. These frontier men were the precise opposites of the tidewater aristocrats.
176. As one of the common frontier technology of IC manufacturing, micro-manufacturing, and robot manipulation, microassembly and micromanipulation have been researched widely recently.
177. The Web may have opened up and democratized the once top-heavy world of publishing, but the next frontier in digital publications is still young.
178. Syria has also closed all border crossings on its southern frontier with Jordan as the crackdown intensifies, a security official told Al Jazeera.
179. Yunnan is a beautiful and amazing culture of rich ethnic customs frontier provinces.
180. We deal now not with things of this world alone, but with the illimitable distances and as yet unfathomed mysteries of the universe. We are reaching out for a new and boundless frontier.
More similar words: confront, in front of, the front line, confrontation, twentieth, on time, continue, continued, continent, continuing, continuous, pay attention to, a bone of contention, on the contrary, tie up, fierce, carrier, patient, barrier, supplier, facilities, irony, bronze, bear on, strong, patron, go wrong, chronic, frown, from.